Which one of the following are the characteristics of a bird
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Answered by
7
Answer:
Characteristics of birds
Feathers.
Wings.
lightweight, rigid skeleton.
Endothermic metabolism.
unique respiratory system.
beak.
oviparity.
Answered by
2
Answer:
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Explanation:
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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