EPITHELIUM CONNECTIVE TISSUE SKIN
INTEGUMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is NOT a characteristic of mammals?
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hair
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mammary glands
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ectotherm
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parental care
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Explanation:
Detailed explanation-1: -Final answer: Not being warm-blooded is not a characteristic feature of mammals.
Detailed explanation-2: -All the characteristics are shared by birds and mammals except viviparity. Birds are oviparous while mammals are oviparous (prototherians) and viviparous (metatherians and eutherians).
Detailed explanation-3: -An animal is considered a mammal if it can produce milk. Other features unique to mammals include hair or fur (chemically different from hairlike structures on non-mammals); the malleus, incus, and stapes in the ear; and a diaphragm separating the heart and lungs from the abdomen.
There is 1 question to complete.