Cold blooded animals are referred to as

A.

Poikilothermic

B.

Homothermic

C.

Polythermic

D.

Homeostatic

Correct answer is A

Insects, fish, reptiles, and amphibians are cold blooded because their body temperature changes along with the external temperature which are known as poikilothermic, while birds and mammals are warm blooded because they maintain a high body temperature regardless of the external temperature.

 A poikilothermic is an animal whose internal temperature varies considerably. It is the opposite of a homoeothermic, an animal which maintains thermal homeostasis.