URINARY SYSTEM AND MALE FEMALE REPRODUCTIVE SYSTEMS
PLACENTA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Mammals that lay eggs are in the order:
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Marsupiala
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Monotremata
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Pilosa
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Chiroptera
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Explanation:
Detailed explanation-1: -Taxonomy. The order Monotremata is unique among mammals, as its members lay shell-covered eggs but nurse their young. The two families in this order are Tachyglossidae, which includes the echidnas, and Ornithorhynchidae, which includes the single species of platypus (Ornithorhynchus anatinus).
Detailed explanation-2: -Only two kinds of egg-laying mammals are left on the planet today-the duck-billed platypus and the echidna, or spiny anteater. These odd “monotremes” once dominated Australia, until their pouch-bearing cousins, the marsupials, invaded the land down under 71 million to 54 million years ago and swept them away.
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