Question

What are "ectothermal animals"?

• A. The animals whose body temperature varies with environmental temperature.
• B. The animals whose body temperature do not vary with environmental temperature.
• C. The animals who can maintain their body temperature.
• D. All of the above.

Answer 1

The correct option is A The animals whose body temperature varies with environmental temperature.

Ectothermal animal (poikilothermal) is an animal that maintains its body temperature by absorbing heat from the surrounding environment. All animals except mammals and birds are ectotherms; they are often described as being cold-blooded and are unable to regulate their body temperature metabolically. Their body temperature changes with changes in the surrounding temperature.

Hence the correct option is A.