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Question

Which of these animals is not a homeotherm?


A

Psittacula

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B

Macropus

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C

Chelone

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D

Camelus

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Solution

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.


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