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Which of the following animals possesses a four-chambered heart but is poikilothermic in nature?

Options

  1. AStruthio
  2. BMacropus
  3. CChelone
  4. DCrocodilus

Correct answer

D. Crocodilus

Step-by-step solution

The question asks for an animal that possesses a four-chambered heart and is poikilothermic (cold-blooded). Struthio (Ostrich) belongs to class Aves. Birds have a 4-chambered heart but are homeothermic (warm-blooded). Macropus (Kangaroo) belongs to class Mammalia. Mammals have a 4-chambered heart but are homeothermic. Chelone (Turtle) belongs to class Reptilia. It is poikilothermic but has a typical 3-chambered heart. Crocodilus (Crocodile) belongs to class Reptilia. Reptiles are poikilothermic. While most reptiles

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