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study for 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
mollusk   soft bodied organism  
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mantle   thin membrace that covers a mollusk's organ  
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radula   rough tongue like organ of a snail  
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arthopod   animal with an exoskeleton and jointed legs.  
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Chitin   Hard material that makesupthe exoskeleton of arthopods.  
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Open circulatory system   circulatory system in which blood doesnot flow constantly through tubes.  
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Antenna   Antennae structure used for touch,taste,and smell.  
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Thorax   Middle section of an insect's body.  
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Abdomen   Abdomen third section of an insect's body.  
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Spiracle   Opeaning to an air tube of a grasshopper .  
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Tympanum   Hearing organ in a grasshopper .  
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Metamorphosis   Series of developmental change of an organism.  
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Larva   Immature stage of many animals that usually looks different from the adult form.  
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Pupa   Resting stage during complete metamorphosis.  
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Cocoon   Protective covering around the pupa.  
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Nymph   Young insect that looks like the adult.  
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Echinoderm   Spiny- skinned Animal.  
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Water-vascular   System of tubes used to transport water.  
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Tube Feet   Small structures of Echinoderms used for movement and feeding.  
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