Question

define \ectotherm\
○ their internal temperature is higher than the external temperature.
○ their internal temperature is the same as the external temperature.
○ their internal temperature is lower than the external temperature.
○ they have two layers of skin, one internal and one external.
submit

Explanation:

An ectotherm (cold - blooded animal) relies on external heat sources, so its internal temperature matches the external environment. The first option is wrong (endotherms may have higher internal temp), the third is incorrect, and the fourth is not related to ectotherm definition.

Answer:

B. Their internal temperature is the same as the external temperature.