INTEGUMENTERY SYSTEM
INTEGUMENTERY SYSTEM MISCELLENOUS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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hair, nails, and skin
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hair/fur, backbone, and lungs
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fur, ears, and feet
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None of the above
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Detailed explanation-1: -A mammal is an animal that breathes air, has a backbone, and grows hair at some point during its life. In addition, all female mammals have glands that can produce milk. Mammals are among the most intelligent of all living creatures.
Detailed explanation-2: -Short and simple answer: mammals are animals that produce milk to feed their babies. Most of them also give birth (although the platypus and echidna, found in Australia, lay eggs). Their bodies are covered in hair rather than scales or feathers, or they are mostly hairless but descended from hairy ancestors.
Detailed explanation-3: -The 5 groups of vertebrates (animals that have a backbone) are fish, amphibians, reptiles, birds, and mammals. Invertebrates are animals that do not have a backbone.