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19 Cards in this Set
- Front
- Back
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in arthropods, a structure that extends from the body wall
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Appendage
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role played by an individual insect in a colony
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Caste
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the body region of some arthropods that consists of a head fused with a thorax
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Cephalothorax
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paired mouthparts of arachnids and their relatives that are modified into fangs or pincers
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Chelicera
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: protective capsule enclosing the transforming larva in insects
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Chrysalis
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eye made of thousands of individual visual units
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Compound Eye
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small marine crustacean that is a chief food source for many marine species
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Krill
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slender, fingerlike organ of excretion that opens into the gut of certain arthropods
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Malpighian tubule
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chewing mouthpart found in many arthropods
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Mandible
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dramatic physical change through which an immature organism passes as it grows to adulthood
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Metamorphosis
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a periodic shedding of an arthropod’s exoskeleton; also found in some reptiles
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Molting
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larval form of a crustacean
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Nauplius
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juvenile stage of some insects that is a smaller version of the adult
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Nymph
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: in arachnids, a second pair of appendages that are modified to catch and handle prey
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Pedipalp
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stage of complete metamorphosis in which an insect changes from larva to adult
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Pupa
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: modified appendages in arthropods that secrete silk
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Spinneret
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respiratory opening of certain arthropods that allows for the passage of air into the body
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Spiracle
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: mid-body region in arthropods
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Thorax
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in certain arthropods, fine tubes that extend into the interior of the body; used for gas exchange
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Tracheae
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