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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
Tissue   A group of similar cells that perform a specific function  
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Organ   A body structure that is composed of different kinds of tissue tat work together  
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Radial Symmetry   A body plan in which any number of imaginary line that all pass through a central point divide the animal into two mirrors images  
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Bilateral Symmetry   A body plan in which a single imaginary line divides the body into left and right sides that are mirror images of each other  
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Adaption   A inherited behavior or physical characteristics that helps an organism survive and reproduce in its environment  
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Homeostasis   The condition in which an organism's internal environment is kept stable in spite of changes in the external environment  
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Vertibrate   An animal with a backbone  
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Invertebrate   An animal without a backbone  
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Cnidarian   A radially symmetrical invertebrate that uses stinging cells to capture food and defend itself  
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Mollusk   An invertebrate with a soft, unsegmented body; most are protected by a hard outer shell  
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Arthropod   An invertebrate that has an external skeleton , a segmented body, and joined appendages  
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Exoskeleton   External skeleton; a tough, waterproof outer covering that protects, supports, and helps prevent evaporation of water from the body of many invertebrates  
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Echinoderm   An animal whose body temperature is regulated by the internal heat the animal produces  
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Endoskeleton   An internal skeleton; structural support system within the body of an animal  
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Created by: Jay_Slay
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