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invertebrat/section1

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
Invertebrate   an animal that does not have a backbone  
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Symmetry    
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Neuron   a special tissues that make fibers  
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Ganglion   a mass of nerve cells  
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Brain   an organ that controls nerves throughout the body  
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Gut   the digestive tract  
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Coelom   a body cavity that contains the internal organs  
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Regenerate   to grow back  
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Medusa Polyp   swin through the water  
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nematocyst   roundworm/ stinging worm  
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parasite   an organism that invades and feeds om the body of another living organism  
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Polyp   attach to a surface  
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pores   the wholes of the outside of a sponge body/ let the water in the sponge  
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collar cells   line the central cavity of a sponge/filter and digest food from the water that enters the body  
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osculum   a whole on top of the sponge/ lets the water out  
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spicules   sharp skeleton  
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spongin   soft skeleton  
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phyla-Porifera    
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phyla-Cnidaria   a group of invertabrates that have stinging cells  
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phyla-Platyhelminthese   flatworms  
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phyla-Nematoda    
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Created by: sabibi111
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