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It's a study guide for animals.

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Term
Definition
Homeostasis   When an animal has stable internal body conditions.  
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Adaptation   Structures and behaviors that allow an animal to perform its function.  
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Vertebrate   An animal with a backbone.  
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Invertebrate   An animal without a backbone.  
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Tissue   A group of similar cells that perform a specific function.  
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Organ   A body part made up of different tissues.  
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Radial Symmetry   An animal that, if many imaginary lines were drawn through a central point, it would be two mirror images.  
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Bilateral Symmetry   If only one line can be drawn down a central point to make two mirror images.  
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Created by: Ethan M
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