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Invertebrates

QuestionAnswer
Seta bristle-like structures that help worms move
Hermaphrodite animal that produces both sperm and eggs
Aerate to supply with air
Crop a storage sac where earthworms store soil
Gizzard a grinding area for soil and organic matter
Sessile remains attached to one place during its lifetime
Polyp cnidarian body type that is vase-shaped and sessile
Medusa cnidarian body type that is bell-shaped and free swimming
Mantle covers the body organs which are located in the visceral mass
Open circulatory system- The heart moves blood out into the open spaces around the body organs
Closed circulatory system Blood containing food and oxygen moves through the body in a series of closed vessels
Radula a tongue-like organ with rows of teeth used to obtain food
Gastropod the largest group of Mollusks usually having one shell (univalve) or no shell
Bivalve Group of mollusks with a hinged, two part shell
Cephalopod Means “head foot”, has a well-developed head, nervous system and all are predators
Polyp cnidarian body type that is vase-shaped and sessile
Medusa cnidarian body type that is bell-shaped and free swimming
Appendages legs, antennae, claws or pinchers
Molting shedding or replacing of an exoskeleton
Crustaceans organisms with 1 or 2 pairs of antennae, mandibles, 5 pairs of legs, swimmerets and can regenerate appendages
Arachnids an organism with 2 body regions, 8 legs, 8 eyes, no antennae, some have venom
Metamorphosis process of body development from young to adult
Mandibles left and right mouth parts of some insects
Siphons a coiled proboscis on some insects
Spiracles openings on the abdomen and thorax through which air enters and waste gases leave
Tube feet hollow, thin-walled tubes that each end in a suction cup
Water vascular system a network of water-filled canals that allow echinoderms to move, capture food, give off waste and exchange gases
Adaptation structures and behaviors that allow animals to perform their functions
Created by: rosjoh9577
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