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.