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19 Cards in this Set

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  • Back
appendage
in arthropods, a structure that extends from the body wall
caste
role played by an individual instect in a colony
chephalothorax
the body region of some arthropods that consisits of a head fused with a thorax
chelicera
paired mouthparts of arachnids and thier relatives that are modified into fangs or pincers
chrysalis
protective capsule enclosing the transforming larva of insects
compound eye
eye made of thousands of individual visual units
krill
samll marine custacean that ius the chief food source for many marine species
malpighian tubule
slender, finderlike organ of excretion that oepns into the gut of certain arthropods
mandible
chewing mouthpart found in many arthropods
metamorphosis
dramitc physical chnage through wihch and immature organism passes as it grows to adulthood
molting
a periodic shedding of an arthropods exoskeleton
nauplius
larval form of a crustacean
nymph
juvenile stage of some insects that is a smaller version of the adult
pedipalp
in arachnids, a second pair of appendages that are modified to catch and handle prey
pupa
stage of complete metamorphosis in which an insect changes from larva to adult
spinneret
modified appendages in arthropods that secrete silk
spiracle
respiratory opening of certian arthropods that allows for the passage of air into the body
throax
mid- body region of arthropods
`trachea
tube that carried air from the larynx to the lungs