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Chapter 4: Lesson 4
Term | Definition |
---|---|
Chordate | An animal that has a notochord, a nerve cord, and throat pouches at some point in its life |
Notochord | A flexible rod that supports a chordate's back just below the nerve cord |
Vertebra | The bones that make up the back bone of an organism. In humans, one of the 26 bones that make up the backbone |
Ectotherm | An animal whose body temperature is determined by the temperature of its environment |
Endotherm | An animal |