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Chap 3 and 4

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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Question
Answer
cnidarian   radial symmetric inveterates that uses stinging cells to capture and defend itself  
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mollusk   inveterate that has soft unsegmented body  
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arthropod   invertebrate that has external skeleton a segmented body  
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exoskeleton   external skeleton  
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endoskeleton   an internal skeleton  
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echinoderm   radial symmetrical invertebrate that has internal skeleton  
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chordate   animal with notochord  
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notochord   flexible rod that supports a chordate  
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vertebra   small bones  
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ectotherm   animal whose body temp is determined by environment  
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endotherm   who controls internal heat  
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Created by: lbailey123
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