Q:

What is an exoskeleton?

A:

Quick Answer

Exoskeletons are hard, external structures that support and protect an animal's body. Exoskeletons provide protection from predators but limit the growth of the animal. Many animals enlarge or shed their exoskeletons as they grow.

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What is an exoskeleton?
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Full Answer

Insects are an example of animals that have an exoskeleton. They do not have internal bones, and their muscles are attached to the exoskeleton. When a muscle contracts, it pulls on the exoskeleton and causes the insect to move. Most insects lose their exoskeleton in a phase called molting. During this phase, insects are very vulnerable to predators because the new exoskeletons have not hardened enough to protect them.

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Related Questions

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    What is an external skeleton?

    A:

    An external skeleton, commonly referred to as an exoskeleton, is an external covering that supports and protects the body of an animal. Many animals, including crabs, cockroaches, snails, clams and tortoises, have exoskeletons.

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    What is the function of the thorax?

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    The thorax is the center of respiration and circulation in an animal's body. It contains the heart, lungs and associated major blood vessels. In insects, the legs and wings are all attached to the thorax.

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    What are the advantages of having an exoskeleton?

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    One advantage an exoskeleton provides is a strong outer layer that acts as armor against predators and environmental hazards. It also serves as a protective water barrier, and it imparts advantages related to structure and mobility.

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    What makes an insect an insect?

    A:

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