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Vocab

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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Term
Definition
Appendages   structure such as claws and and antennaethe grows from the body  
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arthropod   animals that have appendages, an exoskeleton, and bilateral symmetry  
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closed circularity system   blood carried through blood vessels  
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cnidarian   hollow bodied animals that have radial symetry and two celled layers of tissue  
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exoskeleton   a hard body covering that protects an arthropod and reduces water loss  
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gill   organs in which carbon dioxide is exchanged for oxygen  
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invertabrate   animals without backbones  
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mantle   a thin layer of tissue that cover a molluks's body  
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medusa   type of cnidarian that has has a free swimming bell shaped body  
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metamorphasis   the prosess in which insects completely change their form  
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mollusk   soft bodied animals that usually has a shell has a foot and a mantle  
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open circularity system   a system in which blood washed over the organs  
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polyp   a type of cnidarian that has a vase shaped body  
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radula   a scratchy tounge like organ used to scrape off bits of food  
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symetry   the arangement of individual parts of an object  
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