A bat can fly like a bird yet it is not treated as a bird, because it

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Has mammalian character

Has no feathers like a bird

Hangs upside down on a branch

Cannot fly high like a bird

answer is A.

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Detailed Solution

Concept: A bat is considered a mammal. But with his wings, bats can fly. Birds can also fly using their wings. One distinguishing trait of birds is the presence of feathered wings and the ability to fly.
One specific property of mammals is the existence of mammary glands. To fly, birds have feathers on their wings. These are forelimbs with modifications. The bones support these. The bat's wings are a modification of its skin. Skin changes into a wing-like structure and can fly. As a result, bats' wings and birds' wings are different. Mammary glands are a defining property of animals, including bats. The bat is also viviparous, which is a characteristic of mammals.
Hence, the correct answer is option 1.

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