Match the folowing animals with the way the regulate there body temperatures?

1. Mammals

A-endotherm

B-ectotherm

2. Fish

A-endotherm

B-ectotherm

The answers are:

1 - A

2 - B

Ectotherms (cold-blooded animals) are organisms that cannot maintain their body temperature. Their body temperature depends on environmental conditions. The example is fish.

Endotherms (warm-blooded animals) are able to maintain body temperature. Their body temperature does not depend on changes in environmental conditions. The example is mammal.