Question #d7efe
1 Answer
Feb 8, 2018
Humans, Monkeys, elephants, etc. see the explanation why?
Explanation:
Mammalia is a class defined by following major characteristics:
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Four-chambered heart.
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Mammary glands are used to produce milk to nourish their young.
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Warm-blooded
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viviparous (they give birth to live offspring after initial development in mother's body) although some are oviparous (they lay eggs)
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Parental care is well developed
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9 vertebrae in the neck
Examples include:
Humans (Homo sapiens)
Tiger (Panthera tigris)
Polar bear (Ursus maritimus)
Red fox (Vulpes vulpes)
