Question

If an animal is an ectotherm, it has a _______.

• A. skeleton on the outside of its body
• B. skeleton on the inside of its body
• C. body that regulates its own temperature
• D. body that does not produce much internal heat

Answer 1

The correct option is D body that does not produce much internal heat

Ectotherms are cold-blooded animals. their regulation of body temperature depends on external features. They keep their body temperature in a narrow range. For example fishes, reptiles, amphibians etc.

They don't produce much internal heat. So, option D is the correct answer.