5.Both birds and mammals are warm blooded vertebrates. How do they differ?
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Both birds and mammals are warm-blooded, which means they can maintain a constant body temperature and do not need to rely on an external heat source to stay warm. ... Cold-blooded animals, such as reptiles, do not have to eat as much, but they also cannot survive colder temperatures.
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Their body is covered with feathers.
They do not have mammary glands
They are oviparous.
They have hairs on their bodies.
They have mammary glands.
They are viviparous.
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