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B lesson 3
4th grade Science
| Question | Answer |
|---|---|
| cold-blooded | said of an animal that cannot control it's body temperature. |
| warm-blooded | said of an animal with constant body temperature. |
| amphibian | a cold-blooded vertebrate that spends part of it's life in water and part of it's life on land. |
| reptile | a cold-blooded vertebrate that lives on land and has a backbone,an endoskeleton,and water proof skin with scales or plates. |
| mammal | a warm-blooded invertebrate with hair or fur;female mammals produce milk to feed their young. |