Question

Which of these animals is not a homeotherm?

• A. Psittacula
• B. Macropus
• C. Chelone
• D. Camelus

Answer 1

The correct option is C

Chelone

The correct option is C.

Explanation of correct option:

1. Thermoregulation that maintains a constant internal body temperature regardless of external influences is known as homeothermy.
2. Chelone is not a homeotherm among the animals listed.
3. Which are ectotherms (cold-blooded), and their internal body temperature changes depending on the ambient environment.
4. Chelone is a reptile and all reptiles are poikilothermic (cold-blooded)

Explanation of incorrect option:

Option A:

1. Psittacula of the Aves class, on the other hand, are homeotherms.
2. They can keep their body temperature constant regardless of the outside temperature.

Option B:

1. As a marsupial, Macropus is also a homeotherm.

Option D:

1. Camelus are homeotherms.
2. They can keep their body temperature constant regardless of the outside temperature.

Final answer: Chelone is not a homeotherm.