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JS chapter 9

key terms

TermDefinition
Vertebrate Animal with a backbone.
Endoskeleton Skeleton insied 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.
Coidarian Invertebrate animal with sringing cells and a hollow central cavity.
Polyp Cuplike form of a cridarian.
Medusa Umbrella-like form of a cnidarian.
Platyhelminth type of worm with a flattened body.
Parasite Organism that geets its food by living on or in the body of another organism.
Nematode Type of worm with a segmented body.
Annelid Type of worm with a segmented body.
Setae Hairlike bristles.
Closed Circlatory System Organ system in which blood moves through vessels.
Mollusk Soft-bodied organism.
Mantle Thin membrane that covers a mollusk's organ.
Radula Rough,tonguelike organ of a snail
Echinoderm Spiny-skinned animal.
Water-vascular system System of tubes used to transport 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 Hard material that makes up the exoskeleton of arthropods.
Open circulatory system Circulatory system in which blood does not flow constantly though tubes.
Molting Process by which an animal sheds its outer covering.
Antenna Structure used for touch,taste,and smell.
Thorax Middle section of an insect's body.
Abdomen Third section of an insect's body.
Spiracle Opening to an air tube of a grasshopper.
Tympanum Hairing organ in a grasshopper.
Metamorphosis Series of developmental chages of an organsim.
Larva Immature stage of many animals that usually looks different form the adult form.
Pupa Resting stage during complete metamorphosis.
Cocoon Protective covering around the pupa.
Nymph Young insect that looks like the adult.
Created by: johnspess
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