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12 Cards in this Set

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madreporite
sieve-like plate on the starfish skin through which water enters
tube feet
fluid-filled tubes that aid the starfish in movement
gills
organs used to extract oxygen from water
pedicellariae
pincer-like structures of a starfish that aid in cleaning
chitin
protein substance that makes up the exoskeleton of arthopods
appendage
any structure such as an arm or leg that sticks out from the body
nymph
young stage of grasshopper
pupa
cocoon stage of insect where it changes into an adult
larva
young stage of an animal that does not resemble the adult
metamorphosis
change in body form from egg to adult
mantle
membrane of mollusks that secretes the shell and protects inner organs
ovipositor
egg laying device of some insects