SCIENCE
ZOOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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endothermy
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cold blooded
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feathers
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3 chambered heart
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Detailed explanation-1: -(d) Homeothermy (warm blooded) is a common feature shared both by birds and mammals. Warm blooded animals can maintain constant body temperature, irrespective of the surrounding environment, i.e., their body temperature is fixed.
Detailed explanation-2: -What five characteristics do mammals have in common? Mammals have hair or fur; are warm-blooded; most are born alive; the young are fed milk produced by the mother’s mammary glands; and they have a more complex brain than other animals.
Detailed explanation-3: -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-4: -So the correct answer is ‘Seven cervical vertebrae’.
Detailed explanation-5: -Vertebrates: both birds and mammals are vertebrates, which means that they have backbones. Endothermic (warm-blooded): both birds and mammals are endothermic (warm-blooded). Four-chambered hearts: the hearts of both birds and mammals have four-chambers. More items •01-Feb-2022