URINARY SYSTEM AND MALE FEMALE REPRODUCTIVE SYSTEMS
PLACENTA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is a characteristic that all mammals share?
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they all have a pouch
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they all have a cloaca
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they all have hair
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they all have a short gestational period
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Explanation:
Detailed explanation-1: -The mammal class is defined by the presence of mammary glands and hair (or fur). Other traits of mammals include sweat glands in their skin, alveoli in their lungs, a four-chambered heart, and a brain covering called the neocortex.
Detailed explanation-2: -All mammals share three characteristics not found in other animals: 3 middle ear bones; hair; and the production of milk by modified sweat glands called mammary glands.
Detailed explanation-3: -The presence of hair or fur. Sweat glands. Glands specialized to produce milk, known as mammary glands. Three middle ear bones. A neocortex region in the brain, which specializes in seeing and hearing. Specialized teeth. A four-chambered heart. 19-Mar-2020
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