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15 Cards in this Set
- Front
- Back
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appendage
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For arthropods includes legs, antennae, claws and pincers
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closed circulatory system
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Blood containing food and oxygen moves through the body in a series of closed vessels
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crop
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A digestive system sac used for storage
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exoskeleton
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thick, hard, outer covering that protects and supports arthropod bodies and provides a place for muscles to attach
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gill
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organs that exchange carbon dioxide for oxygen in the water
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gizzard
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muscular digestive system structure in which earthworms grind soli and organic matter
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mantle
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thin layer of tissue that covers a mollusk's body organs; secretes the shell or protects the body of mollusks without shells
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metamorphosis
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process in which many insect species change their body form to become adults; can be complete (egg, larvae, pupa, adult) or incomplete (egg, nymph, adult)
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molting
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shedding and replacing of an arthropod's exoskeleton
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open circulatory system
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blood circulation system in which blood moves through the vessels and into open spaces around the body organs
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radula
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in gastropods, the tonguelike organ with rows of teeth used to scrape and tear food
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setae
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bristlike structures on the outside of each body segment that helps segmented worms move
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spiracle
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openings in the abdomen and thorax of insects through which air enters and waste gases leave
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tube feet
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hydraulic, hollow, thin walled tubes that end in suction cups and enable echinoderms to move.
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water-vascular system
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network of water filled canals that allows echinoderms to move, capture food, give off wastes, and exchange carbon dioxide and oxygen
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