1 Classification Essential Question Why is it important to place living things into categories?
2 Compare and contrast
3 Taxonomy comparison
4 18.1 History of Taxonomy Objectives Describe Aristotle s classification system, and explain why it was replaced. Explain Linnaeus s system of classification, and identify the main criterion he used to classify organisms. What are the seven levels of organization that Linnaeus used to categorize organisms? What criterion do modern taxonomists use to classify an organism? What are two reasons that species names are more precise than common names?
5 Early System of Classification Taxonomy is the branch of biology that names and groups organisms according to their characteristics and evolutionary history. Organisms were first classified more than 2,000 years ago by the Greek philosopher Aristotle.
6 Early System of Classification Organism s were grouped into land dwellers, water dwellers, and air dwellers. Plants were placed into three categories based on the differences in their stems. As new organism s were discovered, his system became inadequate. Categories were not specific enough. Common names did not describe a species accurately. Names were long and hard to remember.
7 Modern System:Hierarchy Seven Levels of Organization Carolus Linnaeus (mid-1700 )s was a Swedish biologist who established a simple system for classifying and naming organisms. He developed a Hierarchy (a ranking system) for classifying organisms that is the Basis for Modern Taxonomy. For this reason, he is considered to be father of modern taxonomy.
8 Modern System a Nested Hierarchy- Seven Levels of Organization Linnaeus used an organisms morphology (form and structure), to categorize it. His system is still being used today. His system allowed organisms to be grouped with similar organisms. He first divided all organisms into two Kingdoms, Plantae (Plants) AND Animalia (animals). This was the same as Aristotle s main categories.
9 Modern System a Nested Hierarchy- Seven Levels of Organization Modern System: Each kingdom (plant and animal) was divided into a phylum* (division for plants) Each phylum into a smaller groups called class. Each class was divided into an order. Each order was divided into family (families). Each family was divided into a genus (pluralgenera) Each genus was divided into a species. (scientific name) *Note: Phyla and family were not in Linnaeus s classification system but were added by modern scientists.
10 Levels of Classification Remember: King Philip Came Over For Grandma s Soup. Kingdom Phylum Class Order Family Genus Species See Table 18-1 on page 338 :Classification Hierarchy of Organisms
11 Classification Hierarchy of Organisms
12 Classification of Modern Humans
13 Classification of cheetah
14 Modern Taxonomists Taxonomists split species into subsets called varieties. Zoologists refer to variations of a species that occur in different geographic areas called subspecies. To classify organisms, modern taxonomist consider the phylogeny (evolutionary history) of the organism.
15 Additional Levels of Botanist sometimes split species into subsets known as VARIETIES. Peaches and nectarines are a different variety of the peach tree, Prunus persica Organization peach
16 Binomial Nomenclature Names were based on Latin or Ancient Greek words - scientist everywhere understood these languages. The FIRST word of the Scientific Name (Species Name) is the name of the genus to which the organism belongs. The Genus name refers to the relatively small group of organisms to which a particular type of organism belongs. The SECOND word of the name is the species. (Species identifier) The Species name is usually a Latin description of some important characteristic of the organism.
17 Binomial Nomenclature: Rules for Writing Scientific Names When we use the Latin name for an organism, we ALWAYS capitalize the Genus (first part) but NOT the species identifier (second part). We also print the name in Italics or Underline them. For example: Acer rubrum (scientific name) - red maple tree (common name) or Acer rubrum Acer is the Latin name for Maple (genus) rubrum is the Latin word for Red (species) OR the name can be abbreviated as: A. rubrum Humans are named: Homo sapiens Homo because of our large brain and upright posture. sapiens because of our intelligence and ability to speak.
18 18.2 Modern Phylogenetic Taxonomy Objectives Explain what information can be gathered from a phylogenetic tree. What is systematic taxonomy, and what are four kinds of evidence used organize organisms? How can the embryological evidence be used to show phylogenetic relationships that are not evident from either the study or morphology or the study of the fossil record? Explain cladistic taxonomy and identify one conclusion that is in conflict with classical systematic taxonomy. What are two flaws of the molecular clock model on determining relatedness between species?
19 Systematics Systematics is a system that organizes the tremendous diversity of organisms into a phylogenetic tree. A phylogenetic tree is a family tree that s shows the evolutionary relationships thought to exist between organisms. It represents a hypothesis that is based on lines of evidence such a the fossil record, morphology, embryological patterns of development, and chromosomes and macromolecules.
21 The Fossil Record The fossil record often provides clues to evolutionary relationships It can not be read like a story book because some fossil records are incomplete Systematic taxonomists consider other evidence to confirm information contained within the fossil record with other lines of evidence, like
22 Morphology Taxonomists study an organism s morphology and compare it to other living organisms. Homologous features are important but it is important to separate features that are truly homologous with those the seem homologous but are actually analogous. The more homologous features two organisms share, the more closely related they are thought to be.
23 Embryological Patterns Early pattern in embryological development provide evidence of phylogenetic relationships. They also provide means of testing hypotheses about relationships that have developed from other lines of evidence of Development
24 Chromosomes and Macromolecules Taxonomists use comparisons of macromolecules such as DNA, RNA, and proteins as a kind of molecular clock. Scientists compare amino acid sequences for homologous protein molecules of different species. The number of amino acid differences a clue to how long ago two species diverged from a shared evolutionary ancestor.
25 Chromosomes and Macromolecules Biologists also compare the karyotypes or patterns of chromosomes of two related species. Regions of chromosomes that have the same pattern of banding are clues to the relatedness of organisms. The chromosomes of humans and chimpanzees show a surprising degree of similarity (see fig 18-5,page345)
26 Comparison of Karyotypes Human (HSA), chimpanzee (PPA), gorilla (GGO), and orangutan (PPY) chromosomes are illustrated in a comparative karyotype of the great apes. Photo courtesy of Dr. Mariano Rocchi, Institute of Genetics, Italy.
27 Cladistics Cladistics is a system of taxonomy that reconstructs phylogenies by inferring relationships based on similarities. It is used to determine the sequence in which different groups of organisms evolved. To do this, it focuses on a set of unique characteristics found in a particular group of organisms. These unique characteristics are called derived traits or derived characters.
28 Cladogram Using patterns of shared derived traits, biologists used cladisitcs to construct a branching diagram called a cladogram. A cladogram shows show a sequence in which different groups of organisms evolved The key to Cladistics is identifying morphological, physiological, molecular, or behavioral traits that differ among the organism being studied and that can be attributed a common ancestor.
29 18.3 Two Modern Systems of Classification Objectives What are the six-kingdoms in the six-kingdom system of classification. Briefly describe each. List the characteristics that distinguish archaebacteria from eubacteria. Explain why the protists are grouped together in the six kingdom system in spite of having differences that are greater than those between plants and animals. Describe the evidence that prompted the creation of the threedomain system of classification. Explain the principal difference between the six kingdom system and the three-domain system of classification. What characteristics place fungi, plants, and animals in the Eukarya domain?
30 Six-Kingdom System
31 KINGDOM:ARCHAEBACTERIA Modern Archaebacteria MAY BE Directly descended from and very similar to the First Organisms on Earth. They Are UNICELLULAR PROKARYOTES with distinctive Cell Membranes as well as Biochemical and Genetic Properties that differ from ALL other kinds of life. Some are autotrophic, producing food by chemosynthesis. Includes Chemosynthetic Bacteria Most are heterotrophic. Many Archaebacteria live in harsh environments such as Sulfurous Hot Springs, very salty lakes, and in anaerobic environments, such as the intestines of mammals.
32 KINGDOM EUBACTERIA They are UNICELLULAR PROKARYOTES. Most of the Bacteria (Germs) that affect your life are members of the Kingdom Eubacteria. Eubacteria are both autotrophic and heterotrophic. Includes the disease-causing bacteria such as tooth decay or food poisoning. The Combined Kingdoms, Archaebacteria and Eubacteria include the greatest number of living things on Earth. ALL OF THE PROKARYOTES ARE IN THESE TWO KINGDOMS. Both reproduce by binary fission, but they do have some ways to recombine genes, allowing evolution to occur. E. coli Staphylococcus
33 KINGDOM PROTISTA These organisms are placed here more because of What They Are Not than What They Are. Kingdom Protista contains all eukaryotes that are NOT Plants, Animal, or Fungi, more than 50,000 species in all. Kingdom Protista includes unicellular and a few simple multicellular EUKARYOTES. Eukaryotic cells have nuclei and organelles that are surrounded by membranes. The cells of multicellular protists are not specialized to perform specific functions in the organisms. Includes Euglena and Amoeba. Amoeba Euglena
34 KINGDOM FUNGI Fungi are eukaryotes, and most are multicellular. The cells of fungi have cell walls that contain a material called chitin. These organisms are heterotrophic and obtain their nutrients by releasing digestive enzymes into a food source. They absorb their food after it has been digested by the enzymes. Fungi act either as decomposers or as parasites in nature. Kingdom Fungi includes molds, mildews, mushrooms, and yeast. mushroom
35 KINGDOM PLANTAE Plants are eukaryotic, multicellular and carry out photosynthesis. They are autotrophs. The cells of plants have cell walls, that contain the polysaccharide cellulose. Plant cells are specialized for different functions, such as photosynthesis, the transport of materials, and support. Kingdom Plantae includes mosses, ferns, cone-bearing plants (gymnosperms), and flowering plants (angiosperms). Flowering plant (Poinsettia) fern
36 KINGDOM ANIMALIA Animals are multicellular, eukaryotic, and heterotrophic. Animal cells have NO CELL WALLS. Most members of the Animal Kingdom can move from place to place. Some are permanently attached to surfaces such as sponges and barnacles. Fish, Birds, Reptiles, Amphibians, and mammals-including humans belong to the Kingdom Animalia. This Kingdom also includes sponges, jellyfish, worms, sea stars, and insects. elephant jellyfish
37 Three Domain System Living things fall into three broad groups called domains. Domain Archaea (archaebacteria) Domain Bacteria (eubacteria) Domain Eukarya (eukaryotes)-true nuclei with linear chromosomes and membrane bound organelles. This Includes Protista, Plantae, Fungi, and Animalia.
38 II.C.3.c. Justify why many scientists group viruses in a category separate from living things. Viruses have no nucleus, cytoplasm, organelles, or cell membrane, so can not carry out cellular functions. Only able to replicate by infecting cells and using the organelles and enzymes within very small, size ranges form 20nm to 250 nm (size of small bacteria) Consists of two parts: a nucleic acid and a protein coat called a capsid Nucleic acid may be DNA or RNA but not both Some viruses have a membrane-like structure outside the capsid called an envelope
39 Examples of Viruses Flu virus HIV virus
40 Examples of Viruses Tobacco mosaic virus Polio virus bacteriophage
41 Bacteriophage attacking E. coli
42 How a Virus Invades a Cell a) attachment of virus to host cell b) injection of viral DNA c) Integration of the viral DNA into host genome, and d) Multiplication of the host cell with the viral DNA. Lysogenic cycle of a temperate bacteriophage
43 HIV: a Retro Virus a) HIV attaches to the cell surface b) Virus core enters cell and its RNA is converted to DNA (reverse transcription) c) Viral DNA enters nucleus and combines with host cell DNA d) RNA copies of virus are made (viral assembly) e) The assembled viral particles leave the cell through lysis or budding.
44 HIV Invading a White Blood Cell
45 Viral Diseases
47 Picture Book of Viruses Click here to go to a site about viruses
Classification of Living Things Ch.11 Notes Why do we classify things?! Supermarket aisles! Libraries! Classes! Teams/sports! Members of a family! Roads! Cities! Money What is classification?! Classification:
Zoology Zoology involves studying all aspects of organisms belonging to the animal kingdom taxonomy, animal physiology, comparative anatomy, and ecology. Our study of Zoology will be focused on the different
SECTION 17-1 REVIEW BIODIVERSITY VOCABULARY REVIEW Distinguish between the terms in each of the following pairs of terms. 1. taxonomy, taxon 2. kingdom, species 3. phylum, division 4. species name, species
Class: _ Date: _ Ch 17 Practice test 1. A segment of DNA that stores genetic information is called a(n) a. amino acid. b. gene. c. protein. d. intron. 2. In which of the following processes does change
Why Classify? Classification has been around ever since people paid attention to organisms. CLASSIFICATION One primeval system was based on harmful and non-harmful organisms. Life is easier when we organize
Name Class Date Section 18-1 Finding Order in Diversity (pages 447-450) Key Concepts How are living things organized for study? What is binomial nomenclature? What is Linnaeus s system of classification?
Chapter 18 Classification Chapter Test A Multiple Choice Write the letter on the line provided that best answers the question or completes the statement. 1. Scientists assign each kind of organism a universally
CLASSIFICATION OF LIVING THINGS 1. Taxonomy The branch of biology that deals with the classification of living organisms About 1.8 million species of plants and animals have been identified. Some scientists
Unit 2 Biodiversity Ch. 4 Patterns of Life Name: 4.1 Characteristics of Life In order to be considered living, an organism must possess the following Six (6) characteristics: 1. Living things are organized
Section 1: The History of Classification Section 2: Modern Classification Section 3: Domains and Kingdoms Click on a lesson name to select. Early Systems of Classification Biologists use a system of classification
Classification Systems - Taxonomy Why Classify? 2.5 million kinds of organisms Not complete- 20 million organisms estimated Must divide into manageable groups To work with the diversity of life we need
Bio 2201 Unit 2 The Road to the Six Kingdoms A 2011study estimated there are about 8.6 million species on earth. Only 1.8 million species have been identified and named. *Chromista is a sub-kingdom group
Biology Classification Unit 11 11:1 Classification and Taxonomy CLASSIFICATION: process of dividing organisms into groups with similar characteristics TAXONOMY: the science of classifying living things
Finding Order in Diversity Videos Scishow Taxonomy: https://youtu.be/f38bmgpcz_i Bozeman Taxonomy: https://youtu.be/tyl_8gv7rie Terms to Know 1. Radiometric Dating 12. Miller and Urey s 2. Geologic Time
Classification of Living Organisms Learning Outcome B1 Learning Outcome B1 Apply the Kingdom System of classification to study the diversity of organisms. Student Achievement Indicators Students who have
UNIT 2 BIODIVERSITY Chapter 4- Patterns of Life Biology 2201 Characteristics of Life All living things share some basic characteristics: 1) living things are organized systems made up of one or more cells
CLASSIFICATION NOTES Classification Classification = arrangement of living things into groups according to their observed similarities. Important because it allows us to be able to study life easier Living
Classification and Viruses Practice Test Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Biologists use a classification system to group organisms in part
Classification Practice Test Modified True/False Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true. 1. An organism may have different
Friday April 8 th 2016 Warm-Up Select a highlighter. Get a bottle of glue. Update your Table of Contents (see whiteboard). Today In Science Classification Presentation and Notes How many different types
Prokaryotic Cell Eukaryotic Cell Autotrophs capture the light energy from sunlight and convert it to chemical energy they use for food. Heterotrophs must get energy by eating autotrophs or other heterotrophs.
Classification 1 Species of Organisms There are known species of organisms This is organisms that ever lived!!!!! are still being found and identified 2 What is Classification? is the arrangement of organisms
Topic #1: Taxonomy 1) What is taxonomy? system of naming and classifying organisms 2) Name the eight levels of taxonomic categories, starting with the most general and ending with the most specific. Domain,
Chapter 18: Classification Structured Notes Why Classify? 1) ) Taxon = Taxonomy = Field of biology that deals with classifying and naming organisms Taxonomist = is a scientists who determines relationships
18.3 Building the Tree of Life Changing Ideas About Kingdoms This diagram shows some of the ways in which organisms have been classified into kingdoms since the 1700s. Three Domains Genetic analysis has
Classification Cladistics & The Three Domains of Life Biology Mrs. Flannery Finding Order in Diversity Earth is over 4.5 billion years old. Life on Earth appeared approximately 3.5 billion years ago and
Unit Two: Biodiversity Chapter 4 A. Classifying Living Things (Ch.4 - page 100) Scientific knowledge is constantly evolving ( changing ): new evidence is discovered laws and theories are tested and possibly
Classification What is classification? Basically classification is a fancy word for organization. Some Scientists believe there are as many as 200 million different kinds of living things on our planet.
DAT - Problem Drill 07: Diversity of Life Question No. 1 of 10 Instructions: (1) Read the problem and answer choices carefully, (2) Work the problems on paper as 1. What is taxonomy? Question #01 (A) Taxonomy
Concept 15.4 Modern Taxonomy reflects evolutionary history. What is Taxonomy: identification, naming, and classification of species. Common Names: can cause confusion - May refer to several species (ex.
Classification of Living Things Heather Spalding: University of Hawaii-Manoa GK-12 program VOCABULARY Write the term next to the definition. You will need to know these terms to understand the classification
Classification Table of Contents Objectives Explain why and how organisms are classified. List the eight levels of classification. Explain scientific names. Describe how dichotomous keys help in identifying
Classification = the grouping of objects or organisms based on a set of criteria. i TAXONOMY = A branch of biology that groups and names organisms. I. History A. Aristotle (384-322 B.C.) Greek philosopher
Domains and Kingdoms Archaea Ancient Bacteria Bacteria Regular Bacteria Eukaryota Organisms with a nucleus DOMAIN: Archaea KINGDOM: Archaebacteria Cell Type Structural Organization Cell Wall Mode of Nutrition
NAME: DATE: PER: CLASSIFICATION OF LIFE Powerpoint Notes 1. Species of Organisms a) There are known species of organisms b) This is only of all organisms that ever lived. c) are still being found and identified.
Name Exam Date Class Unit 9: Taxonomy (Classification) Notes What is Classification? is when we place organisms into based on their. Classification is also known as. Taxonomists are scientists that & organisms
Phylogeny Chapter 26 Taxonomy Taxonomy: ordered division of organisms into categories based on a set of characteristics used to assess similarities and differences Carolus Linnaeus developed binomial nomenclature,
Outline Classification of Living Things Chapter 20 Mader: Biology 8th Ed. Taxonomy Binomial System Species Identification Classification Categories Phylogenetic Trees Tracing Phylogeny Cladistic Systematics
Name Living Environment Classification Notes Characteristics of Living Things All living things have a cellular organization, contain similar chemicals, use energy, grow and develop, respond to their surroundings,
Characteristics of Living Things Card Sort All of these terms are characteristics of organisms that allow scientists to classify (organize) them into groups. Chapter 9 in your text covers the characteristics
Chapter 25/26 Taxonomy and Biodiversity Evolutionary biology The major goal of evolutionary biology is to reconstruct the history of life on earth Process: a- natural selection b- mechanisms that change
Classification of Living Things Unit II pp 98 Why There is a Need for Classifying There are over 2 million different types of organisms known. biologists can organize living things into groups. Taxonomy
Phylogeny and the Tree of Life Chapter 26 Objectives Explain the following characteristics of the Linnaean system of classification: a. binomial nomenclature b. hierarchical classification List the major
Classification.. Vocabulary Classification the process of arranging organisms into groups based on similarities Taxonomy the science of naming and classifying organisms trait a characteristic or behavior
9.3 Classification Lesson Objectives Outline the Linnaean classification, and define binomial nomenclature. Describe phylogenetic classification, and explain how it differs from Linnaean classification.
Classification Systems Classification is just a fancy word for organization. So this chapter is equivalent to Biology cleaning its room! A Vast Science Biology, the study of life, is no simple science.
The Tree of Life Chapter 17 1 17.1 Taxonomy The science of naming and classifying organisms 2000 years ago Aristotle Grouped plants and animals Based on structural similarities Greeks and Romans included
Classification Classification Classify to group things together based on similarities Why Classify? To make organisms/items easier to identify To make organisms/items easier to compare Allows us to predict
Organizing Life on Earth Inquire: Organizing Life on Earth Overview Scientists continually obtain new information that helps to understand the evolutionary history of life on Earth. Each group of organisms
Biological Kingdoms An introduction to the six kingdoms of living things 3 Domains Archaea 6 Kingdoms Archaebacteria Bacteria Eubacteria Eukaryota Plantae Animalia Fungi Protista Domain Eukaryota Kingdom
Classifying Organisms What are living things, and how can they be classified? binomial nomenclature species genus dichotomous key cladogram Classifying Living Things Classification: organizing information
Assessment Chapter Test B Classification of Organisms In the space provided, write the letter of the description that best matches the term or phrase. 1. Archaea 2. Bacteria a. kingdom; includes Euglena
Chapter 17 Organizing Life's Diversity Key Concepts: Chapter 17 1. List the 3 domains and the 6 kingdoms. 2. Our current system of classification was originally based on structures; scientists now base
Station 1 Explain how scientists use each item below to determine the evolutionary relationships among organisms. 1. Structural similarities: 2. Breeding behavior: 3. Geographical distribution: 4. Chromosome
Six Kingdoms By Cindy Grigg 1 The first scientist to try to classify organisms was the Greek scholar Aristotle. He classified living things as either plants or animals. Then he divided each of these large
What makes things alive? CRITERIA FOR LIFE Learning Goals I can determine if something is alive based on the criteria for life. I can describe the history of life on Earth. I can describe how organisms
Unit 8 Classification Chapter 18: Classification www.pearsonrealize.com 18.1 Finding Order in Diversity (510) 18.2 Modern Evolutionary Classification (516) 18.3 Building the Tree of Life (523) Name: Teacher:
Rapid Learning Center Chemistry :: Biology :: Physics :: Math Rapid Learning Center Presents Teach Yourself AP Biology in 24 Hours 1/37 *AP is a registered trademark of the College Board, which does not
Name: Period: Biology Test Review: Classification/Taxonomy MAKE SURE YOUR BOOKLET IS COMPLETELY FINISHED! If you are missing information, it can be found on your teacher s webpage. I. Definitions Try to
Objectives Classification Notes 8.1 Summarize classification Describe the evidence used to classify organisms. List the seven levels of classification. Describe and list the six kingdoms of living organisms
Station A: #1. Write your mnemonic for remembering the order of the taxa (from the broadest, most generic taxon to the most specific). Out to the side of each, write the name of each taxon the mnemonic
CLASSIFICATION Similarities and Differences TEKS 8A: Students will define taxonomy and recognize the importance of a standard system to the scientific community 8B: Students will categorize organisms using
Name: _ Due Date: _ Per: _ Unit 4.2 Study Guide Directions: Complete all sections to the best of your ability. On the day of the Quiz (the due date for this assignment) turn this in with all of your Unit
17 Organizing Life s Diversity section 3 Domains and Kingdoms The most widely used biological classification system has six kingdoms within three domains. What You ll Learn major characteristics of the
Dichotomous Keys A tool used that allows users to determine the identity of unknown species Keys consist of a series of choices, where the user selects from a series of connected pairs Each pair of choices
Biology 11 Taxonomy Objectives By the end of the lesson you should be able to: State the levels of classification and the man who created the classification system Describe the 3 domains and the 4 kingdoms
NAME pg. 1 Classification Domain Kingdom Phylum Class Order Family Genus species Eukarya Animalia Chordata Mammalia Primate Hominidae Homo sapiens Mnemonic: DUMB KING PHILIP CAME OVER FOR GOOD SOUP Domain
The Tree of Life Phylogeny Phylogenetics Phylogenetic trees illustrate the evolutionary relationships among groups of organisms, or among a family of related nucleic acid or protein sequences Each branch
Lesson 23 Taxonomy You will learn how scientists have developed a branch of biology known as taxonomy, the goal of which is to organize the great diversity of life. You will also learn why this organization
Cladograms A diagram that shows evolutionary relationships TAXONOMY The Science of Classifying Organisms Why do we need to classify? Imagine a store..how do you know where to find the milk or the cereal?
The Tree of Life Chapter 26 Origins of Life The Earth formed as a hot mass of molten rock about 4.5 billion years ago (BYA) -As it cooled, chemically-rich oceans were formed from water condensation Life
Six Kingdoms By Cindy Grigg Trevor 1 The first scientist to try to classify organisms was the Greek scholar Aristotle. He classified living things as either plants or animals. Then he divided each of these
Taxonomy Branch of Biology dealing with classification and naming of living things Species of Organisms There are an estimated 3 to 100 million species of organisms (most agree with 11 million) This is
Taxonomy Taxonomy Taxonomy is the science of classifying organisms. It has two main purposes: to identify organisms to represent relationships among organisms Binomial Nomenclature Our present biological
Building the Tree of Life THINK ABOUT IT The process of identifying and naming all known organisms, living and extinct, is a huge first step toward the goal of systematics. Yet naming organisms is only
DIVERSITY OF LIVING THINGS Prokaryote vs. Eukaryote 1. Test Monday 2. Lab Report Rough Draft (typed) due Wednesday 3. Lab Report Due Friday Oct 7th 4. Letter to MP due Tuesday Oct 11 th CAROLUS LINNAEUS
Unit 9 Test Review KEY a. Explain the history, purpose, and methods of taxonomy What is taxonomy? the science of naming and classifying organisms Who came up with it? Linnaeus Why do we use taxonomy? Scientific
Section 3: The most widely used biological classification system has six kingdoms within three domains. K What I Know W What I Want to Find Out L What I Learned Essential Questions What are the major characteristics
Sorting It All Out CLASSIFICATION OF ORGANISMS 1 WHAT DO I NEED TO LEARN FROM THIS UNIT? Classify organisms into the currently recognized kingdoms according to characteristics that they share. Be familiar
Chapter 26 Phylogeny and the Tree of Life Biologists estimate that there are about 5 to 100 million species of organisms living on Earth today. Evidence from morphological, biochemical, and gene sequence
CHAPTER 9 2 Domains and Kingdoms SECTION Classification BEFORE YOU READ After you read this section, you should be able to answer these questions: How are prokaryotes classified? How are eukaryotes classified?
Classification Systems How are living things classified?! Learning Goals 12, 13, 14, 15 & 16 on your rubric! TAXONOMY: The study of classification, or how living things are grouped! Aristotle classified
Diversity of Life Classification - an organized scheme for grouping organisms - a tool for communication - Hierarchical - a series of successive and inclusive rankings Domain - the highest rank - contains
Chapter 18 Systematics: Seeking Order Amidst Diversity Bird Diversity in Indonesia Chapter 18 At a Glance 18.1 How Are Organisms Named and Classified? 18.2 What Are the Domains of Life? 18.1 How Are Organisms
Classification Classification & Naming Classwork 1. What is the correct order of the current classification hierarchy, from most general to most specific? 2. Are two organisms in domain more or less closely