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Question

Which of the following animals have character of both reptiles and mammals?

A
Monotremes
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B
Marsupials
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C
Macropus
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D
Manis
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Solution

The correct option is B Monotremes
  • Monotremes are mammals but they lay eggs instead of giving birth to live young, like marsupials and placental mammals.
  • Monotremes are similar to reptilia in having shoulder girdle and egg.
  • Although they share some reptilian features, monotremes possess all the major mammalian characteristics, like air breathing, endothermy (i.e., they are warm-blooded), mammary glands, a furred body, a single bone in the lower jaw and three bones in the middle ear.
  • Hence, option A is correct.

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