copyright cmassengale Kingdoms and Classification
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1 1 Kingdoms and Classification
2 2 Domains Broadest, most inclusive taxon Three domains Archaea and Eubacteria are unicellular prokaryotes (no nucleus or membrane-bound organelles) Eukarya are more complex and have a nucleus and membranebound organelles
3 3 DOMAIN ARCHAEA Probably the 1 st cells to evolve Live in HARSH environments Found in: Sewage Treatment Plants Thermal or Volcanic Vents Hot Springs or Geysers that are acid Very salty water (Dead Sea; Great Salt Lake)
4 4 ARCHAEAN
5 5 DOMAIN EUBACTERIA Some may cause DISEASE Found in ALL HABITATS except harsh ones Important decomposers for environment Commercially important in making cottage cheese, yogurt, buttermilk, etc.
6 Key Characteristics of Bacteria They can be autotrophic, heterotrophic, or chemotrophic. They are unicellular. Have a cell wall and circular DNA. Reproduce asexually. Can be found in three basic shapes: -Rods (bacillius) -Spheres (Cocci) - Spirals (spirillium)
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9 9 Live in the intestines of animals
10 10 Domain Eukarya is Divided into Kingdoms Protista (protozoans, algae ) Fungi (mushrooms, yeasts ) Plantae (multicellular plants) Animalia (multicellular animals)
11 11 Protista Most are unicellular Some are multicellular Some are autotrophic, while others are heterotrophic Usually aquatic.
12 Protists Categories Protists can be separated into three categories based on their nutritional needs: 1. Animal like protists (heterotrophs) 2. Plant like protists (autotrophs) 3. Fungus like protists (decomposers)
13 Animal Like Protists: Animal like protists are also protozoans. Locomotion takes place by either cilia, flagella, or pseudopods. They are heterotrophs and reproduce asexually.
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15 Plant Like Protists Plant like protists include the euglena, algae, and seaweed. They can be unicellular or multicellular. They are photosynthetic (autotrophs) and reproduce asexually.
16 Fungus Like Protists Similar to fungus. They are decomposers (heterotrophs). Reproduce by spores (asexually). Includes slime molds and water molds.
17 Fungi Multicellular, except yeast Absorptive heterotrophs (digest food outside their body & then absorb it) Cell walls made of chitin Reproduce sexaully and asexually. Includes mold, yeast, mushrooms, and even some parasites (athlete s foot or ringworm). copyright cmassengale 17
18 Structure of Fungi: Fungi are composed of hyphae. These are thin filaments of single cells. The hyphae join together to make a net like structure called the mycelium. This helps increase the rate of absorption.
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20 20 Plantae Multicellular Autotrophic Absorb sunlight to make glucose Photosynthesis Cell walls made of cellulose
21 21 Plantae Plants can be divided into 2 categories: 1) Vascular Plants-have xylem and phloem. 2) Nonvascular Plants- do not have xylem and phloem.
22 22 Non Vascular Plants Includes: liverworts, mosses, and bryophytes. Since non vascular plants do not have xylem, they require moist environments in order to get water.
23 23 Vascular Plants Vascular plants have xylem and phloem and can be divided into 2 groups: 1) Angiosperms-flower producing plants. Ex: Apple trees 2) Gymnosperms-cone bearing plants. Ex: Pine trees
24 24 Angiosperm Reproduction Cross pollination occurs when pollen from one flower fertilizes an egg from another flower. Animals, wind, and water help with cross pollination. Self pollination occurs when pollen from one flower pollinates its own egg.
25 25 Angiosperm Reproduction Stamen contains the male parts of the plant. Anther produces pollen (sperm). Carpel contains the female parts. Ovary contains the ovule (egg).
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27 27 Types of Plants Bryophytes Non-vascular No xylem or phloem Examples are mosses They are small Have to be near water No pollen, seeds, flowers, or fruits Gymnosperms Vascular Xylem to move water Phloem to move food Examples are conifers Have pollen (sperm) Have seeds on cones No fruits or flowers Angiosperms Vascular Xylem to move water Phloem to move food Examples are flowering plants like oak trees, corn, and roses Have pollen (sperm) Have seeds in fruits Have flowers
28 28 Animalia Multicellular Ingestive heterotrophs (consume food & digest it inside their bodies) Feed on plants or animals Specialized organs.
29 29 TYPES OF ANIMALS Annelids Segmented worms No backbone breathe through skin Closed circulatory system External fertilization External development Insects No backbome Three body segments Six legs Wings Open circulatory system External fertilization Females may store sperm External development metamorphosis Amphibians Have backbone Moist skin Gills when young, lungs when adult Three chambered heart Cold-blooded External fertilization External development Metamorphosils Jelly like egg Mammals Backbone Hair Milk glands Lungs Four chambered heart Warm-blooded Internal fertilization Internal development Amniote egg
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