Question

define \endotherm\
○ their internal temperature is constant.
○ their internal temperature is the same as the external temperature.
○ their internal temperature is higher than the external temperature.
○ their internal temperature is lower than the external temperature.
submit

Explanation:

Endotherms (like mammals, birds) regulate their internal temperature to be constant, independent of external temp. The other options describe ectotherms or incorrect relationships.

Answer:

A. Their internal temperature is constant.