Which one of the following characteristics is not shared by birds and ...
(c) Giving birth to living young that develop within the mother's body rather than hatching from eggs. All mammals except the monotremes are viviparous.
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Which one of the following characteristics is not shared by birds and ...
Mammals are viviparous while birds are oviparous. Viviparous means giving birth to offspring that develops within the mother's body. Oviparous means producing eggs that hatch outside the body of mother.
Which one of the following characteristics is not shared by birds and ...
Not shared by birds and mammals: Viviparity
Birds and mammals share several characteristics, including:
Ossified endoskeleton: Both birds and mammals have an internal skeleton made of bone.
Breathing using lungs: Both birds and mammals have lungs for respiration.
Warm-blooded nature: Both birds and mammals are warm-blooded, meaning they regulate their body temperature internally.
However, viviparity is not a characteristic shared by birds and mammals. Viviparity refers to the ability to give birth to live offspring that have developed inside the mother's body. While some mammals are viviparous, meaning they give birth to live young, birds are not. Instead, birds lay eggs that hatch outside of the mother's body. This is known as oviparity.
In summary, while birds and mammals share several characteristics, such as an ossified endoskeleton, lungs for respiration, and being warm-blooded, they differ in their reproductive strategies, with mammals being viviparous and birds being oviparous.
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