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Question
Which among the following features is a difference between birds and mammals?
Which among the following features is a difference between birds and mammals?
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Solution
The correct option is B Viviparity
The birds are oviparous as they lay eggs. The majority of the mammals are viviparous as they give birth to young ones.
The birds and mammals are homeotherms (warm-blooded) and maintain constant body temperature. Both have a four-chambered heart with two auricles and two ventricles. They also have kungs for respiration.
The birds are oviparous as they lay eggs. The majority of the mammals are viviparous as they give birth to young ones.
The birds and mammals are homeotherms (warm-blooded) and maintain constant body temperature. Both have a four-chambered heart with two auricles and two ventricles. They also have kungs for respiration.
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