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Carapace


carapace
a covering on the back of certain animals, such as lobsters and turtles
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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carapace Structure formed by posterior and lateral extension of dorsal sclerites of the head in many Crustacea, usually covering and/or fusing with one or more thoracic somites; considered as arising from a fold of head exoskeleton.
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carapace
The part of a Crustacean that spreads over the head and thorax.
Covered in Lab 12 Animal Diversity II ...
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Exoskeletal protection is offered by shells, carapaces (consisting of calcium compounds or silica) and chitinous exoskelotons.
A true endoskeleton (that is, protective tissue derived from mesoderm) is also present in Echinoderms.
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Arachnids have a cephalothorax covered with a carapace-like shield. The abdomen may be segmented or unsegmented. Appendages on the abdomen are absent or modified, for example forming the spinnerets of spiders.
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