A. Poikilothermic
B. Homothermic
C. Polythermic
D. Homeostatic
Correct Answer:
Option A – Poikilothermic
Explanation
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
