What is an exoskeleton?

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.

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.

Q&A Related to "What is an exoskeleton?"
Unlike an endoskeleton (human skeleton) which is internal, and exoskeleton is external. The exoskeleton serves to protect the soft tissue. A good example of a life form with an exoskeleton
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Exoskeletons are the "outer" skeletons, where all soft tissues are hidden inside the "shell" or whatever is forming the exoskeleton. Lobsters, crabs, insects,
http://wiki.answers.com/Q/What+you+an+exoskeleton
An exoskeloton is the horny skeleton that encloses the body of all Arthropoda. ChaCha!
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exoskeleton: the exterior protective or supporting structure or shell of many animals (especially invertebrates) including bony or horny parts such as nails or scales or hoofs
http://www.kgbanswers.com/what-is-an-exoskeleton/1...
1 Additional Answer
Ask.com Answer for: what is an exoskeleton
ex·o·skel·e·ton
[ek-soh-skel-i-tn]
NOUN [ZOOLOGY]
1.
an external covering or integument, especially when hard, as the shells of crustaceans (endoskeleton).
Source: Dictionary.com
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