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