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8 Cards in this Set

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exoskeleton
external skeleton, tough external covering that protects and supports the body of many invertebrates
chitin
complex carbohydrate that makes up the cell walls of fungi; also found in the external skeletons of arthopods
appendage
structure,such as a leg or antenna, that extends from the body wall
tracheal tube
one of many branching, air-filled tubes that extend throughout the bodies of many terrestrial arthropods
spiracle
small opening located along the side of the body trhough which air enters and leaves the body of many terrestrials arthropods
book lung
organ that has layers of respiratory tissue stacked like the pages of a book; used by some terrestrial arthopods for the exchange of gases
Malpighian tubule
saclike organ in most terrestrial arthropods that extracts wastes from the blood, adding them to feces that move through the gut
molting
process in which an arthropod sheds its exockeleton and manufactures a larger on to take its place