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Animal terms

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Word
Definition
choanocytes   cells which line the pores in sponges and move the water with their flagella  
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spicule   skeletal structure in sponges  
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osculum   excretes water from the sponge  
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ostia   opening of the sponge  
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colloblast   shoot sticky stuff onto the prey of ctenophora  
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cnidocytes   cell which fires nematocyst in cnidaria  
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mesoglea   substance which makes up bodies of jellyfish and comb jellies  
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metanephridia   like kidneys in annelids  
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setae   bristle/hairs on annelids  
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crop   stores food prior to digestion in annelids  
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visceral mass   internal organs in molluscs  
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radula   like the teeth of molluscs  
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spiracles   openings on the surface of arthropods that lead to the digestive tract  
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malpighian tubule   excratory system in arthropods  
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eyespots   allows platyhelmninthes to see  
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branched digestion   in platyhelminthes  
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cuticle, all the same shape--under pressure   nematoda  
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wheel cilian   scoop stuff into mouth of rotifera  
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