Glossary: exoskeleton
External skeleton, often forming a hard, shell-like outer covering typical in insects, crustaceans and some molluscs. Usually chitinous but may also be composed primarily of calcium carbonate or silica.
External skeleton, often forming a hard, shell-like outer covering typical in insects, crustaceans and some molluscs. Usually chitinous but may also be composed primarily of calcium carbonate or silica.
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