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Chp.9 Biology Vocab

TermDefinition
vertebrate animal with a backbone
endoskeleton skeleton inside the body
invertebrate animal without a backbone
exoskeleton skeleton on the outside of the body
pores tiny openings
poriferan invertebrate animal with pores
spicule small,hard,needlelike structure of a sponge
cnidarian invertbrate animal with stining cells and a hollow central cavity
polyp cup-like form of a cnidarian
medusa umbrella-like form of a cnidarian
platyhelminth type of worm with a flattened body
parasite organism that gets its food by living on or in the body of another organism
nematode type of worm with round body
annelid type of worm with a segmented body
setae tiny,hairlike britstles
closed circulatory organ system in which blood moves through vessels
mollusk soft-bodied organism
mantle thin membrane that covers a mollusk's organs
radula rough, toungelike organ of a snail
echinoderm spiny-skinned animal
water-vascular system system of tupes used to transport water
tube feet small sturtures of echinoderms used for movement and feeding
regeneration ability to regrow lost plants
anthropod anmial with an exoskeleton and jointed legs
chitin hard material that makes up the exoskeleton of arthtopods
open circualtory system circulatory system in which blood does not flow constaly through tubes
molting process by which an animal sheds its outer covering
antenna structure used for touch,taste,smell
thorax middle section of an insects body
abdomen third section of a insects body
spiracle opening to an air tube of a grasshopper
tympanum hearing organ in a grasshopper
metamorphosis series of developmental changes of an organism
larva immature stage of many animals that usually looks different from the adult form
pupa resting stage during complete metamorphsis
cocoon protective covering around the pupa
nymph youg insect that looks like the adult
Created by: paigee
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