Question

____________is the unique characteristic feature of mammal​

Answer 1

Answer:

The presence of mammary glands

Presence of hairs on the skin.

Presence of sweat glands etc.

Answer 2

Answer:

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.

Explanation:

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