Question

what are birds ? list some important characteristics of birds.

Answer 1

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$Characteristics\: of\: Birds.$

Birds are endothermic and, because they fly, they require large amounts of energy, necessitating a high metabolic rate.
As with mammals, which are also endothermic,
birds have an insulating covering that keeps heat in the body:feathers.

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Answer 2

Birds are the species which is living on earth with us...

Characteristics - - -

1. They have beaks

2. They have wings

3. They lay eggs

4. They have feathers

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