OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a costume worn by Xmen
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a skeleton that is outside the body
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an instrument used to drill into the earth
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part of a spacesuit worn by astronauts
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Detailed explanation-1: -The hard part present outside the body which protects the soft tissues and muscles is called the exoskeleton. It is developed from ectoderm and is mostly called a non-living structure. Some examples of the exoskeleton are hair, feather, scales, horns, etc.
Detailed explanation-2: -An exoskeleton is the external skeleton that supports and protects an animal’s body. An exoskeleton is a key feature of arthropods, a category of animals that includes insects, spiders, and crustaceans.
Detailed explanation-3: -exoskeleton, rigid or articulated envelope that supports and protects the soft tissues of certain animals. The term includes the calcareous housings of sessile invertebrates such as clams but is most commonly applied to the chitinous integument of arthropods, such as insects, spiders, and crustaceans.
Detailed explanation-4: -An exoskeleton is a hard layer on the outside of some creatures’ bodies. An exoskeleton is an ‘external skeleton’, the opposite of an endoskeleton. But invertebrate insects aren’t the only creatures with exoskeletons. Spiders, centipedes, crabs, snails, and lobsters all have a kind of external armour.