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Classifying Animals

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
marsupials   Animals that have pouches to carry their under-developed young in.  
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birds   Animals with two legs, two wings, and hollow bones  
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cnidarians   Have a mouth tentacles and muslce tissue  
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cartilage   A material that gives your ear its stiffness  
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swim bladder   Part of a fish that allows them to go up and down in the water  
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asymmetrical   their body cannot be divided into mirror images  
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invertebrates   animals without backbones  
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radial symmetry   A type of body with body parts arranged around a central point  
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placental mammals   have babies that grow inside them  
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mollusks   group that includes snails, clams and squids  
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Created by: litzk
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