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Unit A, Ch 1: Comparing Living Things Lesson 3 : How are animals classified?

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.

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Unit A, Ch 1: Comparing Living Things Lesson 3 : How are animals classified?

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  1. Unit A, Ch 1: Comparing Living ThingsLesson 3: How are animals classified?

  2. 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

  3. 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!)

  4. Animals with backbones vertebrates: An animal WITH a backbone • EXAMPLE: fish, frogs, cats, reptiles, dolphins, you! • -fish • - reptiles • - amphibians • - mammals • - birds

  5. 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!

  6. Check for Understanding… • What are invertebrates? • What are vertebrates? • What are mammals? • Can you compare and contrast the different groups of vertebrates?

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