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Biology ch9

animals without backbones

TermDefinition
Vertebrate animal without a backbone
Endoskeleton skleleton isdide the body
invertrbrate animal a without backbone
exoskeleton skeleton on the outside of the body
pores tiny openings
porriferan invertebrate animal with pores
spicule small hard needlelike structure of a sponge
cidarian invertebrate animal witht stingimg cells and a hollow central cavity
polyp cuplike 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 a round body
annelid type of worm with a segmented body
setae tiny hairlike bristles
closed circulatory system organ system in which blood moves through vessels
mollusk soft bodied organism
mantle thin membrane that covers a mollusks organs
radula rough tonguelike organ of a snail
echinoderm spiny skinned animal
water vascular system system of tubes used to transpot water
tube feet small structures of echinoderms used for movement and feeding
regeneration ability to regrow lost parts
arthropod animal with an exoskeleton and jointed legs
chitin material that makes up the exos
Created by: kingsimba97
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