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biology99

science

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 invertebrate animal with stinging cells and a hollow cenral cavity.
Polyp cuplike form of a cnidarian.
Medusa umbrella like form of the cnidarian
Platyhelminth type of worm with a flattened body
Parasite organism that gets it's food by living on or in
Nematode type of a worm with a round body.
Annelid type of a 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 mollusk's organs
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.r
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 through tubes.
Molting process by which an animal sheds it's outer covering.
Created by: kirk hogan
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