ANIMAL BEHAVIOR
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Kangaroo
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platypus
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wombat
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lemur
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Detailed explanation-1: -A platypus or echidna is an example of a monotreme.
Detailed explanation-2: -The monotremes are a group of highly specialised egg-laying predatory mammals, containing the platypus and echidnas. There are only five living species of monotreme, contained within two families: Family Ornithorhynchidae: the platypus, a single species in a single genus, Ornithorhynchus anatinus.
Detailed explanation-3: -Monotremes are a unique order of mammals that includes only three extant species: the duck-billed platypus (Ornithorynchus anitinus), the short-billed echidna (Tachyglossus aculeatus), and the western long-billed echidna (Zaglossus bruijni).
Detailed explanation-4: -The key anatomical difference between monotremes and other mammals gives them their name; monotreme means “single opening” in Greek, referring to the single duct (the cloaca) for their urinary, defecatory, and reproductive systems. Like reptiles, monotremes have a single cloaca.
Detailed explanation-5: -The correct answer is (d). platypuses.