unit a, ch 1: comparing living things lesson 3 : how are animals classified?
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Unit A, Ch 1: Comparing Living Things Lesson 3 : How are animals classified?. Animals without backbones. invertebrates: An animal WITHOUT a backbone back·bone Noun /ˈ bakˌbōn / 1. The series of vertebrae extending from the skull to the pelvis; the spine. - PowerPoint PPT PresentationTRANSCRIPT
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UNIT A, CH 1: COMPARING LIVING THINGS
LESSON 3: HOW ARE ANIMALS CLASSIFIED?
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ANIMALS WITHOUT BACKBONES
invertebrates:An animal
WITHOUT a backbone
back·boneNoun/ˈbakˌbōn/
1. The series of vertebrae extending from the skull to the pelvis; the spine.
2. The chief support of a system or organization; the mainstay
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ANIMALS WITHOUT BACKBONES
invertebrates:An animal
WITHOUT a backbone
- arthropods (80% of animals!)
EXAMPLE: sponges, snails, jellyfish, sea stars, spiders, mollusks
(70% of arthropods are insects!)
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ANIMALS WITH BACKBONES
vertebrates:An animal
WITH a backbone
EXAMPLE: fish, frogs, cats, reptiles, dolphins, you!
-fish - reptiles - amphibians - mammals - birds
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ANIMALS WITH BACKBONES
mammals:-An animal WITH a
backbone-Have hair or fur,
feed young with milk
EXAMPLE: dolphins, whales, YOU!
* Bats are the only mammals that can fly!
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CHECK FOR UNDERSTANDING…1. What are invertebrates?
2. What are vertebrates?
3. What are mammals?
4. Can you compare and contrast the different groups of vertebrates?