Vocabulary for Invertibrates
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Appendage | Structure such as a claw,leg,or antenna that grows from the body.
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| Arthropod | Bilaterally symmetrical animal with jointed appendages a protective exoskeleton, and a segmented body.
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| Closed Circulatory System | A type of blood circulatory system in which blood is transported through blood vessels rather than surrounding the organs.
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| Cnidarian | Radially symmetrical, hollow bodied animal with two cell layers organized into tissue.
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| Exoskeleton | Rigid, protective body covering of an arthropod that supports the body and reduces water loss
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| Gill | Organ that allows a water dwelling animals to exchange carbon dioxide for disolved oxygen in the water
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| Invertibrate | An animal without a Backbone
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| Mantle | Thin layer of tissue that covers a mollusks body and that can secrete a shell
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| Medusa | Free swimming bell shaped body form in the life cycle of a Cnidarian
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| Metamorphosis | Change of body form that can be completed (egg,larva,dupa,adult) or incomplete
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| Mollusks | Soft bodied,bilateral symmetrical invertibrate with large muskular foot,mantle,and an open circulatory system; usually have a shell.
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| Open Circulatory System | A type of blood circulatory system that lacks blood vessels and in which blood washes over the organs.
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| Polyp | Vase shaped, usually sessile body form in the life cycle of a cnidarian.
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| Radula | Scratchy, tonguelike organs in many mollusks that has rows of teeth like projections used to scrape and grate food.
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| Symmetry | Arrangement of individual body parts; can be raidial,bilateral,or asymmetrical.
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