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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No, because mammals have live youngs
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Yes, platypus and other monotremes are mammals that lay eggs
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No, because only fish and birds lay eggs
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Yes, there are many mammals that lay eggs
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Detailed explanation-1: -Only two kinds of egg-laying mammals are left on the planet today-the duck-billed platypus and the echidna, or spiny anteater.
Detailed explanation-2: -Monotremes are typified by structural differences in their brains, jaws, digestive tract, reproductive tract, and other body parts, compared to the more common mammalian types. In addition, they lay eggs rather than bearing live young, but, like all mammals, the female monotremes nurse their young with milk.
Detailed explanation-3: -Final answer: The Duck-billed platypus is an egg-laying mammal.
Detailed explanation-4: -The vast majority of mammals give live birth to their young; the platypus lays eggs. Female mammals feed milk to their young through specialized nipples or teats; female platypuses do not have teats and instead simply “sweat” milk to their young. The platypus is also one of the few mammals to produce venom.