Chapter 24 Animal Evolution The Invertebrates
|
|
- Rodger Harrell
- 6 years ago
- Views:
Transcription
1 Chapter 24 Animal Evolution The Invertebrates
2 24.1 Medicines from the Sea Invertebrates No backbone Most diverse and numerous of land and ocean animals Marine invertebrates Many produce secondary metabolites that help them survive Some can be useful as medicines
3 Medicines from the Sea Fish-eating cone snails produce venom Paralyzes a fish during capture Same compound affects the human nervous system Synthetic version currently used to relieve severe pain Other peptides from cone snail venom being tested as treatments for epilepsy, cancer, and diabetes
4 Medicines from the Sea AZT Medicine used to treat AIDS First derived from a sponge Gorgonians (relatives of sea anemones) Source of a variety of anti-inflammatory compounds
5 24.2 Animal Traits and Body Plans Animals Multicelled heterotrophs Ingest food, digest it, and absorb the released nutrients Develop from embryo to adult forms Most reproduce sexually All move during their lifetime
6 Sponges Cnidarians Flatworm s Annelids Mollusks Roundworms Arthropod s Echinoderms Chordates Trochophore Larva Molting 5 Protostome Development 6 Deuterostome Development 3 Radial Symmetr y 4 Bilateral Symmetry 2 Tissues 2016 Cengage Learning 1 Multicellularity Ancestral protist
7 Animal Traits and Body Plans Embryo structure Jellies and other cnidarians have two tissue layers Outer ectoderm and inner endoderm Other animals include a mesoderm (middle layer) Internal organs develop from the mesoderm
8 ectoderm mesoderm endoderm 2016 Cengage Learning
9 Animal Traits and Body Plans Sponges are asymmetrical Jellies and other cnidarians have radial symmetry Animals with three-layer body plan have bilateral symmetry Cephalization Evolutionary process in which cells and sensory structures become concentrated at the front of the body Helps animal find food or avoid threats
10 Animal Traits and Body Plans Protostomes First opening on an embryo becomes the mouth Most bilateral invertebrates Deuterostomes Mouth develops from second embryonic opening Includes some invertebrates, and all vertebrates
11 Animal Traits and Body Plans Digestion In sponges, digestion is intracellular Cnidarians and flatworms digest in the gastrovascular cavity Most bilateral animals have a complete digestive tract
12 epidermis (from ectoderm) tissues, organs (from mesoderm) gut cavity gut tissue (from endoderm) A Flatworms have no body cavity ex cept their gut. pseudocoelom epidermis (from ectoderm) tissues, organs (from mesoderm) gut cavity gut tissue (from endoderm) B Roundworms have a fluid-filled pseudocoelom. coelom epidermis (from ectoderm) mesenter y tissues, organs (from mesoderm) gut cavity gut tissue (from endoderm) C Annelids have a fluid-filled coelom with sheets of tissue (mesentery) that hold the gut in place Cengage Learning
13 24.3 Animal Origins and Adaptive Radiation Colonial theory of evolution First animals evolved from a colonial protist Colonies had specialized cell types Eventually process produced the first animal Choanoflagellate cells resemble cells in modern sponges Earliest evidence of animals Biomarker characteristic of sponges found in 635 million year old sedimentary rock
14 Animal Origins and Adaptive Radiation 570 million year old fossils of marine invertebrates discovered in Australia Dramatic adaptive radiation occurred during the Cambrian ( million years ago) All animal lineages present by the end of the period Environmental factors were probable influences Global climate warmed Oxygen concentration increased
15 Animal Origins and Adaptive Radiation Biological factors might have influenced diversification Evolution of novel prey defenses
16 24.4 Sponges Sponges have no tissues or organs Aquatic animals More than 5,000 species live in tropical seas Common shape: asymmetrical vase-like or columnar Live attached to a surface Suspension feeders Filter food from the surrounding water
17 water out glassy structural elements amoeboid cell central cavity pore semifluid matrix flattened surface cells water in water in collar cell flagellum collar of microvilli nucleus 2016 Cengage Learning
18 Sponges Reproduction Most sponges are hermaphrodites Each individual can produce both eggs and sperm Sperm released into the water Fertilization produces a zygote Develops into a ciliated larva Gemmules Tiny clumps of resting cells encased in a hard coat Wind-dispersed, they grow into new sponges
19 24.5 Cnidarians Predators with Stinging Cells Phylum Cnidaria 10,000 species Includes corals, sea anemones, and jellies Body plans of cnidarians Medusa: bell shaped Polyp: tubular Use tentacles to sting and capture prey No brain, but have interconnecting nerve cells
20 Cnidarians Predators with Stinging Cells Cnidarian classes Hydrozoans Example: Hydra, a freshwater predatory polyp Anthozoans Corals and sea anemones Cubozoans Box jellies Scyphozoans Jellies that wash up on beaches Portuguese man-of-war
21 2016 Cengage Learning lid capsule s trigger (modified cilium) barbs on discharged thread exposed barbed thread in capsule nematocyst (capsule at free surface of epidermal cell)
22 lid capsule's trigger (modified cilium) barbs on discharged thread exposed barbed thread in capsule nematocyst (capsule at free surface of epidermal cell) Stepped Art
23 Cnidarians Predators with Stinging Cells Some marine hydrozoans Life cycle includes polyp, medusa, and larval stages
24
25 6 reproductive polyp female medusa male medusa ovum sperm 1 zygote 5 feeding polyp one branch of a colony growth of a polyp ciliated bilateral larva Stepped Art
26 A Hydrozoan. Hydra, a freshwater species, capturing and digesting a water flea. B Anthozoans. A reef-building coral with polyps extended for feeding (top), and a sea anemone (bottom). C Cubozoan. The box jelly Chironex makes a toxin that can kill a person. D Scyphozoan. The Portuguese man-ofwar (Physalia ) is a colony. The purplishblue, air-filled float is a modified polyp. Courtesy of Dr. William H. Hamner Kim Taylor/Bruce Coleman, Ltd. A.N.T./Science Source. Expeditieteam Aldabra, Foto Natura/Minden Pictures Etha Daniels/Shutterstock
27 24.6 Flatworms Simple Organ Systems Flatworms Simplest protostomes Flattened body Organ systems, but no body cavity Move nutrients through their system using diffusion Majority are hermaphrodites Some are free-living and some are parasites
28 Flatworms Simple Organ Systems Free living flatworms propelled by cilia Planarian Type of free living flatworm common in ponds Muscular tube called pharynx sucks food into gastrovascular cavity Chemical receptors on the head detect light Simple brain of paired ganglia Higher solute concentration than surrounding water Water moves into the body by osmosis
29 branching gastrovascular cavity paired groups of nerve cells that serve as simple brain pair of highly branched tubules that adjust water and solute levels in body ovary testis oviduct mouth pair of nerve cords that have lateral branchings genital pore A Digestive system. B Nervous system. C Solute-regulating system. D Reproductive system Cengage Learning
30 Parasitic Flatworms Flukes and tapeworms Life cycle generally includes multiple hosts Reproduce asexually in early hosts before developing into adults Reproduce sexually in the final host Schistosomaisis Human disease caused by blood fluke Affects 200 million people Most cases in Southeast Asia and Northern Africa
31 Parasitic Flatworms Tapeworms Live and reproduce in the vertebrate gut Head structure includes hooks or suckers to attach to the gut wall Do not have a gastrovascular cavity Absorb nutrients across the body wall Beef tapeworm life cycle Humans are the final host See Figure on next slide
32
33 1 2 proglottid scolex tapeworm in cattle muscle 5 beef with larval tapeworm 4 larva 3 proglottid with fertilized eggs Stepped Art
34 24.7 Annelids Segmented Worms Bilateral worms with segregation both inside and outside the body Have a closed circulatory system Blood flows through a series of vessels Polychaetes and oligochaetes Have chitin-reinforced bristles on their segments Sandworm is the best known polychaete
35 Annelids Segmented Worms Leeches Can live in the ocean and damp land habitats Most common in fresh water Body has a sucker at each end Many are scavengers or predators to small invertebrates Some suck blood from vertebrates Saliva protein keeps blood from clotting while it feeds
36 Annelids Segmented Worms Earthworm: an oligochaete Body is coated with secreted proteins Gas exchange occurs across the body surface Circulatory system helps distribute oxygen Scavenger Has both longitudinal and circular muscles Hermaphrodite, but needs to be fertilized by another worm
37 24.8 Mollusks Animals With a Mantle Bilaterally symmetrical invertebrates with a mantle Skirtlike extension of the upper body Encloses a space called the mantle cavity Vast majority are marine, but some live in fresh water Respiratory system Aquatic mollusks have gills Land mollusks have lungs
38 Mollusks Animals With a Mantle 100,000 living species Four main classes Chitons Marine; feature a dorsal shell with eight plates Gastropods Snails and slugs Bivalves Mussels, oysters, clams, and scallops Cephalopods Squids, octopuses, and cuttlefish
39 24.9 Rotifers and Tardigrades Tiny and Tough Rotifers Live in fresh water and damp land habitats Most are less than one millimeter long Have constantly moving cilia on the head Movement directs food into the mouth Tardigrades Commonly live alongside rotifers Suck juices from plants or algae Survive dry periods by becoming dormant Can live for years in dormant state
40 24.10 Roundworms Unsegmented Worms That Molt Unsegmented worms with a cylindrical body Collagen-rich cuticle is periodically molted As the worm grows 20,000 species live in fresh water, seas, damp soil, and inside other animals Most are free living decomposers less than one millimeter long Several types of parasitic roundworms infect humans
41 A Intestinal parasite, Ascaris, passed by a child. B The grossly enlarged leg of the man on the left is a sign of lymphatic filariasis. C Plant-infecting roundworm entering a root. Courtesy of Emily Howard Staub and The Carter Center CDC/ Henry Bishop William Wergin and Richard Sayre. Colorized by Stephen Ausmus.
42 24.11 Arthropods Molting Animals With Jointed Legs Arthropods have a hard, jointed external skeleton Most diverse invertebrate group Adaptations that helped them succeed Exoskeleton Jointed appendages allow movement Highly modified segments perform special tasks Compound eyes and antennae Body plan that changes during life cycle
43 24.12 Chelicerates Spiders and Their Relatives Examples: spiders, scorpions, ticks, horseshoe crab Two body regions: fused head and thorax, and abdomen Arachnids live on land 38,000 spider species Ticks are parasites of vertebrates Mites are less than one millimeter long Some can burrow beneath the skin
44 24.13 Myriapods Centipedes Nocturnal ground dwellers Have a flattened body with many similar segments Have 30 to 50 legs Fast moving predators Millipedes Few hundred pairs of legs Slower moving than centipedes Feed on decaying vegetation
45 24.14 Crustaceans Most marine arthropods are crustaceans Body has two distinctive regions Cephalothorax and abdomen Examples: lobster, shrimp, crayfish, and crabs Decapods: five pairs of walking legs Krill and copepods Small swimmers that feed on plankton Group includes larval barnacles and pillbugs
46 A Antarctic krill ( Euphausia superba). Individuals can be up to 6 centimeters long. David Tipling/Photographer s Choice/Getty Images Peter Parks/Image Quest Marine. Herve Chaumeton/Agence Nature B Female copepod with eggs. C Barnacle extending feathery legs.
47 24.15 Insects Diverse and Abundant Three part body Head, thorax, and abdomen Group is largely terrestrial Earliest insects were ground dwelling Did not undergo metamorphosis Most modern insects have wings and undergo metamorphosis Stages: larvae, pupa, adult Ants make up 10 percent of world s terrestrial biomass
48 Insects Diverse and Abundant Ecological impact of insects Pollinate flowering plants Important as food for wildlife Insects dispose of wastes and remains Insects are humans main competitors for crops About one-third of all crops in the United States are lost to insects Insects can spread human diseases
49 24.16 The Spiny-Skinned Echinoderms Echinoderms include 6,000 marine invertebrates Example: sea stars Active predators that move on tiny, fluid-filled tube feet Feed on bivalve mollusks Can regenerate lost body parts Brittle stars are seafloor scavengers Sea urchins have a spiny, rounded covering
50 upper stomach anus lower stomach spine gonad coelom digestive glan d eyespot Herve Chaumeton/Agence Nature 2016 Cengage Learning spine ossicle (tiny skeletal structure) ampullae tube feet
51 Points to Ponder Some people don t consider an organism a true animal unless it bleeds red when injured. Do any of the animals presented in this chapter fit this definition? Why is the word primitive not accurate in describing early groups like sponges and cnidarians?
Life Science 7 th NOTES: Ch Animals Invertebrates
Life Science 7 th NOTES: Ch 10-11 Animals Invertebrates Write the correct word in the blanks to show directions on an animal body: ** Word Bank (Posterior, Ventral, Dorsal, Anterior) top surface front
More informationInvertebrate Diversity
CHAPTER 23 Invertebrate Diversity Summary of Key Concepts Concept 23.1 Diverse animals share several key characteristics. (pp. 494 496) More than a million living species of animals are organized into
More informationINVERTEBRATE DIVERSITY
INVERTEBRATE DIVERSITY 1 INVERTEBRATES Animals that lack a backbone Invertebrates 2 1 ANIMAL DEVELOPMENT Meiosis Egg Sperm Zygote Adult Blastula hollow ball of cells in a developing animal Gastrula Stage
More informationKINGDOM ANIMALIA CHARACTERISTICS
KINGDOM ANIMALIA CHARACTERISTICS EUKARYOTIC MULTICELLULAR HETEROTROPHIC (by ingestion) MOVE AT SOME POINT IN LIFE (not all - sponges are sessile) DIGEST FOOD TO GET NUTRIENTS LACK CELL WALLS CHARACTERISTICS
More informationClassification. The three-domains. The six-kingdom system. The traditional five-kingdom system. Bacteria Archaea Eukarya
Classification The three-domains Bacteria Archaea Eukarya The six-kingdom system Bacteria Archaea Protista Plantae Fungi Animalia The traditional five-kingdom system Monera Protista Plantae Fungi Animalia
More informationCharacteristics of Animals
Characteristics of Animals Multicellular Cellular Organization What is this? Heterotrophic Adaptations CHAPTER 9 Cellular Organization 4 Major Functions of Animals Obtain food and water Sustain metabolism
More informationSponges. What is the sponge s habitat. What level of organization do sponges have? Type of symmetry?
Sponges What is the sponge s habitat Marine (few freshwater species) What level of organization do sponges have? Cell level Type of symmetry? None Type of digestive system (none, complete or incomplete)?
More informationIntroduction to Animal Kingdom. Invertebrates and Vertebrates
Introduction to Animal Kingdom Invertebrates and Vertebrates Introduction To Animals Vertebrate animal with a backbone. Invertebrate animal without a backbone; includes more than 95% of all animal species
More informationMarine Invertebrates
Name: Date: Period: Marine Invertebrates Porifera Annelida Cnidaria Mollusca Platyhelminthes Arthropoda Nematoda Echinodermata Name Class Date Section 26 2 Sponges (pages 664 667) This section explains
More informationToday: Animal Body Plans. Animal Body Plans: The Gut. The Animal Kingdom- General Characteristics: Animal Body Plans: Symmetry
Today: Exploring the Animal Kingdom Introduction to Ecology The Animal Kingdom- General Characteristics: Multicellular Heterotrophic (via ingestion) Eukaryotes Require Oxygen for aerobic respiration Reproduce
More informationClassification. Grouping & Identifying Living Things
Classification Grouping & Identifying Living Things Classifying Living Things We put livings things into three Domains Eukarya Bacteria Archaea Which are divided into 6 Kingdoms Plant Animal Fungi Protist
More informationWhat Is an Animal? Section 25.1 Typical Animal Characteristics. I. Characteristics of Animals. Biology II Mrs. Michaelsen
What Is an Animal? Section 25.1 Typical Animal Characteristics Biology II Mrs. Michaelsen I. Characteristics of Animals A. All animals are eukaryotic, multicellular, have ways of moving to reproduce, obtain
More informationIntroduction to Animals
Introduction to Animals Moving Forward Quizlet Each section we cover, 1 group will go to our class on Quizlet and create 20 flash cards on the topic (/5mks) If I warn you about talking while I m talking,
More informationAnimals are in Domain Eukarya
The Diversity of Animals 1: invertebrates Chapter 23 Animals are in Domain Eukarya Immediate ancestors are a type of Protista Key features Multicellular Kingdom Animalia Heterotrophic: gain energy by consuming
More informationChapter 24 Introduction to Animals
1 Chapter 24 Introduction to Animals I. Animal characteristics A. General Animal Features Multicellular B. Feeding and Digestion a. acquire nutrients from various sources obtaining nutrients unique to
More informationBIOLOGY. An Introduction to Invertebrates CAMPBELL. Reece Urry Cain Wasserman Minorsky Jackson
CAMPBELL BIOLOGY TENTH EDITION Reece Urry Cain Wasserman Minorsky Jackson 33 An Introduction to Invertebrates Lecture Presentation by Nicole Tunbridge and Kathleen Fitzpatrick Figure 33.UN08 Metazoa Eumetazoa
More informationINVERTEBRATES. The Earth and Living Things. Carme Font Casanovas 1
INVERTEBRATES Living Things. Carme Font Casanovas 1 How many animals can you see? ant rose coral snake anemone fish grass bee Living Things. Carme Font Casanovas 2 Invertebrates There are animals without
More informationArthropods. Ch. 13, pg
Arthropods Ch. 13, pg. 374-382 382 Arthropods Insects Arachnids Centipedes and Millipedes Crustaceans Characteristics of Arthropods Arthropods have jointed appendages and include legs, antennae, claws,
More informationArthropoda ARTHRO JOINTED PODA FEET
Arthropoda ARTHRO JOINTED PODA FEET The arthropods are a group of animals which has attained the greatest biological success largest number of species and individuals and occupy the greatest number of
More informationEukaryote Phylogeny. Glycogen. Kingdom Animalia. Amoebozoa Animalia. Plantae. Chromalveolata Rhizaria. Fungi. Excavata
Eukaryote Phylogeny most protozoans, brown algae, & water molds Excavata Chromalveolata Rhizaria Plantae Amoebozoa Animalia Fungi cpsts. w/ 2 memb. chitin, hyphae glycogen eukaryotic cells (nucleus, etc.)
More informationIntroduction to Animals
Introduction to Animals Characteristics of Animals multicellular Except for sponges, animal cells are arranged into tissues. Tissues are necessary to produce organs and organ systems. Tissues, organs,
More informationA. Incorrect! Sponges are mostly marine animals. This is a feature of sponges.
College Biology - Problem Drill 15: The Evolution of Animal Diversity Question No. 1 of 10 1. Which is not a feature of the phyla porifera- sponges? Question #01 (A) Most are marine animals. (B) They have
More informationBIOS1101 Lab Notes. Contents ANIMALS. Lab 1: Animal Diversity invertebrates. Lab 2: Animal Diversity 2 vertebrates
Contents ANIMALS Lab 1: Animal Diversity invertebrates Lab 2: Animal Diversity 2 vertebrates Lab 3: Animal Structure 1 Gross morphology Lab 4: Animal Structure 2 Histology Lab 5: The Nervous System & Sensory
More informationIntro to Animals. Chapter 32
Intro to Animals Chapter 32 1) Multicellular Organization (Different cells have different functions) Specialization: adaptation of a cell for a particular function Remember: cells tissues organs organ
More informationWhat Is an Animal? Animals come in many shapes, forms, and sizes. About 98 percent of all animals are invertebrates. The Kingdom Animalia
What Is an Animal? What characteristics do all animals have? Animals come in many shapes, forms, and sizes. Scientists estimate that there are between 1 and 2 million species of animals! Some, like whales
More information09/12/2012. Classification. Characteristics. Learning Outcome G2. Student Achievement Indicators. Phylum Porifera The Sponges
Learning Outcome G2 Analyse the increasing complexity of the Phylum Porifera and the Phylum Cnidaria Learning Outcome G2 Phylum Porifera & Phylum Cnidaria Student Achievement Indicators Students who have
More informationSponges and Cnidarians
The Animal Kingdom Multicellular Sponges and Cnidarians Biology : Chapter 26 Eukaryotic Heterotrophs Cells lack cell walls 95% are invertebrates What Animals Do to Survive Feeding Response Respiration
More informationThe Animal Kingdom: The Protostomes. Protostomes 4/16/2012. Chapter 30
Porifera Acoelomates ates The Animal Kingdom: The Protostomes Chapter 30 Protostome Bilateral Protostomes Acoelomates ates Characterized by spiral cleavage determinate cleavage (fixed fate of cells) of
More informationKingdom Animalia. Zoology the study of animals
Kingdom Animalia Zoology the study of animals Summary Animals are multicellular and eukaryotic. consume and digest organic materials thereby being heterotrophs. Most are motile at some time in their lives.
More informationChapter 8. Sponges Phylum Porifera Basic characteristics: simple asymmetric sessile
Chapter 8 Key Concepts Sponges are asymmetric, sessile animals that filter food from the water circulating through their bodies. Sponges provide habitats for other animals. Cnidarians and ctenophores exhibit
More informationBrief Introduction to the Animal Kingdom
Brief Introduction to the Animal Kingdom Vocabulary Vertebrate Invertebrate Detritivore Asymmetry Bilateral symmetry Radial symmetry Cephalization Coelum Pseudocoelum Acoelomates Blastula Blastophore Protosome
More informationName Class Date. After you read this section, you should be able to answer these questions:
CHAPTER 14 3 Invertebrates SECTION Introduction to Animals BEFORE YOU READ After you read this section, you should be able to answer these questions: What structures and systems perform basic life functions
More informationThe Evolution of Animal Diversity. Dr. Stephen J. Salek Biology 130 Fayetteville State University
The Evolution of Animal Diversity Dr. Stephen J. Salek Biology 130 Fayetteville State University Create your own animal? Start with a basic plant. Make the plant into a simple animal such as a worm. Consider:
More informationAnimals contain specialized cells
What is an Animal? Kingdom Animalia Main Characteristics Members of the Animal Kingdom are: Eukaryotic Multicellular Heterotrophic Have cells with membranes BUT NO cell wall Animals contain specialized
More informationChapter 18. The Evolution of Invertebrate Diversity. Lecture by Joan Sharp
Chapter 18 The Evolution of Invertebrate Diversity PowerPoint Lectures for Biology: Concepts & Connections, Sixth Edition Campbell, Reece, Taylor, Simon, and Dickey Copyright 2009 Pearson Education, Inc.
More informationPorifera Sponges Features:
Porifera Sponges The Phylum Porifera consists only of sponges, which is unique since these animals are entirely aquatic; with 98% found only in marine environments and a small percentage found in freshwater
More information*Add to Science Notebook Name 1
*Add to Science Notebook Name 1 Arthropods, Ch. 13, pg. 374-382 Characteristics of Arthropods *Arthropods are the largest group of animals. *Arthropods have jointed and include,,, and. *Arthropod appendages
More informationResources. Visual Concepts. Chapter Presentation. Copyright by Holt, Rinehart and Winston. All rights reserved.
Chapter Presentation Visual Concepts Transparencies Standardized Test Prep Introduction to Animals Table of Contents Section 2 Animal Body Systems Objectives Identify the features that animals have in
More informationChapter 7. Marine Animals Without a Backbone
Chapter 7 Marine Animals Without a Backbone General Characteristics of Animals Multicellular, diploid organisms with tissues, organs or organ systems in most Heterotrophic Require oxygen for aerobic
More informationWhat is a Cnidarian?
Invertebrate What is a Cnidarian? 9000 species of jellyfishes, corals, sea anemones, hydras Mostly marine animals Radially symmetrical One body opening Two layers of cells organized into tissues with specific
More informationPh. Porifera and Ph. Cnidaria
I. Phylum Porifera (sponges; pore bearer ) A. General characteristics 1. simplest animals 2. asymmetric 3. aquatic habitats a. typically marine 4. live alone or in colonies a. often members of reef habitats
More informationRevision Based on Chapter 25 Grade 11
Revision Based on Chapter 25 Grade 11 Biology Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A cell that contains a nucleus and membrane-bound organelles
More informationNotes - Porifera and Cnideria
Notes - Porifera and Cnideria - Animals exist on every continent on the planet. Most people consider animals to be the most important kingdom as we are considered animals. But, what is an animal? What
More informationBiology 11. The Kingdom Animalia
Biology 11 The Kingdom Animalia Objectives By the end of the lesson you should be able to: Describe the 5 ways we classify animals Symmetry Germ layers Body plan Segmentation Animal Evolution Hank Video
More information3. Choanoflagellates resemble what? What is the significance of this resemblance?
I. Animal Diversity 1. What are some basic characteristics of the animal kingdom? What characteristics make them different from plants? - Eukaryotic, heterotrophic (we don t make our own food), we store
More informationChapter 8-9 Intro to Animals. Image from:
Chapter 8-9 Intro to Animals Image from: http://animaldiversity.ummz.umich.edu/index.html Zoology Definition: the scientific study of the behavior, structure, physiology, classification, and distribution
More informationKingdom Animalia. Special Features: Advanced nervous systems means cephalization (faces), brains, and efficient mobility (walk/run/swim/grab)
Kingdom Animalia Kingdom Animalia Cell Number: Multicellular with extensive specialization Cell Type: Eukaryotic Animal Cells (no cell wall) Food: Heterotrophic Carnivore (meat), Herbivore (plants), Omnivore
More information8/23/2014. Introduction to Animal Diversity
Introduction to Animal Diversity Chapter 32 Objectives List the characteristics that combine to define animals Summarize key events of the Paleozoic, Mesozoic, and Cenozoic eras Distinguish between the
More information23.1 Animal Characteristics EQ Although diverse, what common characteristics do all animal share?
23.1 Animal Characteristics EQ Although diverse, what common characteristics do all animal share? Sea Slug 23.1 Animal Characteristics Animals are the most physically diverse kingdom of organisms and all
More informationFinal Exam Study Guide. Evolution
Name: Biology I A Final Exam Study Guide Date: Mr. Tiesler Evolution An adaptation is a physical or behavioral change that improves a population s ability to survive. Evolution is the process by which
More informationChapter 32. Objectives. Table of Contents. Characteristics. Characteristics, continued. Section 1 The Nature of Animals
Introduction to Animals Table of Contents Objectives Identify four important characteristics of animals. List two kinds of tissues found only in animals. Explain how the first animals may have evolved
More informationChapter 18 ANIMAL EVOLUTION AND DIVERSITY. Introduction What is an animal? The Evolution of Invertebrate Diversity
Chapter 18 The Evolution of Invertebrate Diversity Introduction Most octopuses rely on nonaggressive defense mechanisms such as camouflage. The blue-ringed octopus is an exception, with a toxin 10,000
More informationIntroduction to Animal Diversity. Chapter 23.1, 23.2 and additional
Introduction to Animal Diversity Chapter 23.1, 23.2 and additional 1 Think of an Animal... Does your choice have hair or fur? Does it have a skeleton? Over a million species of animals described 95% have
More informationUnit 12 ~ Learning Guide
Unit 12 ~ Learning Guide Name: INSTRUCTIONS Complete the following notes and questions as you work through the related lessons. You are required to have this package completed BEFORE you write your unit
More informationChapter 32, 10 th edition Q1.Which characteristic below is shared by plants, fungi, and animals? ( Concept 32.1)
Chapter 32, 10 th edition Q1.Which characteristic below is shared by plants, fungi, and animals? ( Concept 32.1) A) They are multicellular eukaryotes. B) They are heterotrophs. C) Their cells are supported
More informationCOMPARISON BETWEEN PORIFERA AND CNIDARIA. Colwyn Sleep
COMPARISON BETWEEN PORIFERA AND CNIDARIA Colwyn Sleep INTRODUCTION Porifera Cnidaria Porifera and Cnidaria are organisms which share similar characteristics with one another. -They are both multicellular,
More informationFeatures of the Animal
Features of the Animal Kingdom Bởi: OpenStaxCollege Even though members of the animal kingdom are incredibly diverse, animals share common features that distinguish them from organisms in other kingdoms.
More informationWorms and Mollusks (pp )
Worms and Mollusks (pp. 424 432) This section tells about the characteristics of the three main groups of worms and the main characteristics of mollusks. Use Target Reading Skills As you read, take notes
More informationWhat is an animal? Introduction to Animals. Germ Layers. Tissues and Organs. Structural Support. Types of Symmetry 11/3/2015
What is an animal? Introduction to Animals Multicellular chemoorganoheterotrophs Eukaryotes that lack cell walls and chloroplasts Have mitochondria Are motile at some point in their lives Contain collagen
More informationAnimals. What are they? Where did they come from? What are their evolutionary novelties? What characterizes their diversification?
Animals What are they? Where did they come from? What are their evolutionary novelties? What characterizes their diversification? What synapomorphies unite Animals Multicellular Heterotrophs (Metazoans)?
More informationAn Introduction to the Invertebrates (part 4?!) Annelida & Nematoda. Reference: Chapter 33.3, 33.4
An Introduction to the Invertebrates (part 4?!) Annelida & Nematoda Reference: Chapter 33.3, 33.4 More Relationships Slime molds Tubulinids Entamoebas Nucleariids Fungi Choanoflagellates Animals Excavata
More informationBiology 211 (1) Exam 2 Worksheet!
Biology 211 (1) Exam 2 Worksheet Chapter 33 Introduction to Animal Diversity Kingdom Animalia: 1. Approximately how many different animal species are alive on Earth currently. How many those species have
More informationChapter 33: Invertebrates
Name Period Chapters 31, 32, and 33 should be considered as a single unit, and you should try to put all of them together in a single conceptual framework. Due to the scope of our course, you are likely
More informationAnimal Diversity. Animals are multicellular, heterotrophic eukaryotes with tissues that develop from embryonic layers 9/20/2017
Animal Diversity Chapter 32 Which of these organisms are animals? Animals are multicellular, heterotrophic eukaryotes with tissues that develop from embryonic layers Animals share the same: Nutritional
More informationAnimal Diversity. Features shared by all animals. Animals are multicellular, heterotrophic eukaryotes with tissues that develop from embryonic layers
Animal Diversity Animals are multicellular, heterotrophic eukaryotes with tissues that develop from embryonic layers Nutritional mode Ingest food and use enzymes in the body to digest Cell structure and
More informationMollusks. Use Target Reading Skills. b. invertebrate c. segmented body d. unsegmented body
Name Date Class Mollusks This section descnbes the features of mollusks aud identifies three mapr groups of mollusks. Use Target Reading Skills As vou read, compare and contrast the three groups of mollusks
More informationChapter 8. Sponges, Cnidarians, Comb Jellies, and Marine Worms
Chapter 8 Sponges, Cnidarians, Comb Jellies, and Marine Worms Cnidarians: Animals with Stinging Cells Phylum Cnidaria Includes hydroids, corals, and sea anemones Coelenterate: synonym Named for their cnidocytes
More informationANIMAL DIVERSITY AND THE EVOLUTION OF BODY PLANS
ANIMAL DIVERSITY AND THE EVOLUTION OF BODY PLANS GENERAL FEATURES OF ANIMALS Heterotrophy - obtain energy and organic molecules by ingesting other organisms Multicellularity - Many have complex bodies
More informationOutline. v Definition and major characteristics of animals v Dividing animals into groups based on: v Animal Phylogeny
BIOSC 041 Overview of Animal Diversity: Animal Body Plans Reference: Chapter 32 Outline v Definition and major characteristics of animals v Dividing animals into groups based on: Body symmetry Tissues
More informationTuesday February 26, 2013 Invertebrate Animals Animals: Multicellular, no cell wall or chlorophyll, eukaryotic, heterotrophs
Name: Class: Biology Weekly Packet February 25 th - March 1 st, 2013 Monday February 25, 2013 Catalyst Tuesday February 26, 2013 Invertebrate Animals Animals: Multicellular, no cell wall or chlorophyll,
More informationLab 37 Platyhelminthes and Nematoda
Lab 37 Platyhelminthes and Nematoda - Bilateral symmetry - Protostome (mouth 1 st ) development - Mesoderm present - Two groups: lophotrochozoa and edcysozoa - Body cavity may be present or absent Phylum
More informationIntroduction to Animal Diversity Lecture 7 Winter 2014
Introduction to Animal Diversity Lecture 7 Winter 2014 Evolution of Animals 1 Prokaryotes Eukaryotes Prokaryotes No nucleus Nucleoid region Simple No membrane bound organelles Smaller (1-5 nm) Evolutionarily
More informationInvertebrates. Invertebrate Characteristics. Body Symmetry
3 Invertebrates Key Concept Invertebrates do not have backbones, but they do have other structures to perform their life functions. What You Will Learn Invertebrates have many specialized structures that
More informationThe Animals, or Metazoa. Approximate proportions of animal species presently known; The true diversity of animals may be more than 90% Arthropods
The Animals, or Metazoa Are some of the best-studied organisms Comprise over a million known species Originated c. the Cambrian (~550 MYA) Most animal phyla are marine; however, due to the diversity of
More informationChapter 32 Intro to Animals. Image from:
Chapter 32 Intro to Animals Image from: http://animaldiversity.ummz.umich.edu/index.html Animals Invertebrates (animals without a backbone) Porifera Cnidaria Worms Mollusks Echinoderms Arthropods Animals
More informationKingdom: Animals. Domain Archaea. Domain Eukarya. Domain Bacteria. Common ancestor
Kingdom: Animals Domain Eukarya Domain Bacteria Domain Archaea Domain Eukarya Common ancestor 1 Animal Characteristics Heterotrophs must ingest others for nutrients Multicellular complex bodies No cell
More informationAnimal Origins and Evolution
Animal Origins and Evolution Common Features of Animals multicellular heterotrophic motile Sexual reproduction, embryo Evolution of Animals All animals are multicellular and heterotrophic, which means
More informationv Scientists have identified 1.3 million living species of animals v The definition of an animal
Biosc 41 9/10 Announcements BIOSC 041 v Genetics review: group problem sets Groups of 3-4 Correct answer presented to class = 2 pts extra credit Incorrect attempt = 1 pt extra credit v Lecture: Animal
More informationGuided Reading Activities
Name Period Chapter 18: The Evolution of Invertebrate Diversity Guided Reading Activities Big idea: Animal evolution and diversity Answer the following questions as you read modules 18.1 18.4: 1. The eating
More information2/17/2017. Lecture 10: Chapter 31 Protostome Diversity
1 Lecture 10: Chapter 31 Protostome Diversity 2 3 Protostomes: one of two monophyletic groups of bilaterally symmetrical, coelomate animals The other group is the Deuterostomes Differ in pattern of early
More information- found in bryozoans (moss animals), brachiopods (lamp shells) and phoronids (horseshoe worms)
Chapter 33 Protostome Animals - insects the phylum Arthropoda include the insects, crusraceans and myriapods and make up 40% of the total mass of organisms present 33.1 An Overview of Protostome Evolution
More informationBiosc 41 9/10 Announcements
Biosc 41 9/10 Announcements v Genetics review: group problem sets Groups of 3-4 Correct answer presented to class = 2 pts extra credit Incorrect attempt = 1 pt extra credit v Lecture: Animal Body Plans
More informationEvolution and Biodiversity Laboratory Identifying Microorganisms in Aquatic Samples
Evolution and Biodiversity Laboratory Identifying Microorganisms in Aquatic Samples Being able to identify organisms is important if you wish to discover what is already known about their natural history,
More informationChoanoflagellates. Porifera (sponges) Ctenophora (comb jellies) Cnidaria (jellyfish, corals, sea anemones) Acoela (acoels)
Choanoflagellates Fungi Choanoflagellates ANIMALIA Porifera (sponges) ANIMALIA Multicellularity Ctenophora (comb jellies) Diploblasty Cnidaria (jellyfish, corals, sea anemones) Acoela (acoels) Triploblasty
More informationName Class Date. Matching On the lines provided, write the letter of the description that best matches each term on the left. 1.
Chapter 28 Arthropods and Echinoderms Chapter Vocabulary Review Matching On the lines provided, write the letter of the description that best matches each term on the left. 1. thorax a. shedding of the
More informationAre these organisms. animals or not?
1 2 3 4 5 Are these organisms 6 7 8 animals or not? 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 9 10 11 12 Typical Animal Characteristics Eukaryotic Multicellular Ability to move Reproduce Obtain food (heterotrophic)
More informationProtists. Simple Eukaryotes. Regents Biology Common ancestor. Domain Archaebacteria. Domain Eukaryotes. Domain Bacteria
Protists Simple Eukaryotes Domain Bacteria Domain Archaebacteria Domain Eukaryotes Regents Biology 2006-2007 Common ancestor General characteristics Classification criteria eukaryotes not animal, plant
More informationNonvascular Plants mosses, liverworts and hornworts are nonvascular plants. These lack vascular tissue which is a system of tubes that transport
Nonvascular Plants mosses, liverworts and hornworts are nonvascular plants. These lack vascular tissue which is a system of tubes that transport food, water and minerals throughout the plant. Water and
More informationChps : Animals. Characteristics of kingdom Animalia: Multicellular Heterotrophic Most are motile Possess sense organs
Chps 23-26: Animals Chps. 23-27: Animals Characteristics of kingdom Animalia: Multicellular Heterotrophic Most are motile Possess sense organs Animal Characteristics Forms of symmetry: Radial Bilateral
More informationEmbryonic Development. Chapters 32-34: Animal Diversity AP Biology Fig Zygote Cleavage Blastocoel. Cleavage.
Chapters 32-34: Animal Diversity AP Biology 2012 1 Animal Characteristics Heterotrophs Multicellular Eukaryotes Cells lack cell walls Bodies held together by structural proteins like collagen Contain nervous
More informationintroduction to the Animal Kingdom (pages $55-560) Formulating a Definition: Building Vocabulary Skills
STUDY GUIDE CHAPTER Sponges, Cnidarians, and Unsegmented Worms Section 26-1 introduction to the Animal Kingdom (pages $55-560) SECTION REVIEW With this section you began your study of the animal kingdom.
More informationSponge and Cnidarian Review
Name Period Date Sponge and Cnidarian Review Matching On the lines provided, write the letter of the definition that matches each term. 1. Invertebrate 2. Filter feeder 3. Asymmetry 4. Radial 5. Medusa
More informationLearning Objectives. The Animal Kingdom: An Introduction to Animal Diversity. Sexual Reproduction
Learning Objectives The Animal Kingdom: An Introduction to Animal Diversity Chapter 29 What characters are common to most animals? Advantages and disadvantages of different environments Searching for relationships
More informationCharacteristics of Echinoderms
Characteristics of Echinoderms Adult echinoderms have a body plan with five parts organized symmetrically around a center Does not have an anterior nor posterior end or a brain Most echinoderms are two
More informationAnimals. Chapters Exam November 22, 2011
Animals Chapters 32-35 Exam November 22, 2011 Overview of Animals Chapter 32 General Features of Animals and Evolution of the Body Plan General Features of Animals Heterotrophs Multicellular No Cell Walls
More informationAnimal Diversity I: Porifera, Cnidaria, Ctenophora, Platyhelminthes, Rotifera, Annelida
1 Animal Diversity I: Porifera, Cnidaria, Ctenophora, Platyhelminthes, Rotifera, Annelida Objectives: Be able to distinguish radial symmetry from bilateral symmetry. Be able to identify which of the phyla
More informationModule 4: Marine Invertebrates I. Kingdom Animalia
Module 4: Marine Invertebrates I Kingdom Animalia Kingdom Animalia Contains the largest number of species We will split them into 2 large groups Invertebrates- Animals w/o a backbone Vertebrates- Animals
More informationWhat defines the zygote, the blastula, and the gastrula? Draw pictures.
What makes a multicellular organism multicellular? a) Multiple cells b) Multiple cells that work together c) Specialized cells d) Multiple specialized cells that work together What defines the zygote,
More informationLab 2 Phylum Porifera and phylum Cnidaria. Grantia. Phylum Porifera. Kingdom :- Animalia. Phylum:- Porifera. Class:- Calcarea. Order:- Leucosolenida
Lab 2 Phylum Porifera and phylum Cnidaria Phylum Porifera Adults sessile and attached Radial symmetry or asymmetrical Multi-cellular ; loose aggregation of cells Skeleton made of collagen and spicules
More information