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11.1 Vocabulary
Term | Definition |
---|---|
chordate | vertebrates that have a notochord and slits in their throat area. |
notochord | a flexible rod that supports a chordate's back. |
vertebrae | the backbone is formed by many similar bones. |
ectotherm | an animal whose body does not produce much internal heat. |
endotherm | an animal whose body regulates its own temperature by controlling the internal heat it produces. |