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Me science quiz invertebrates

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
Question
Answer
An earthworm's *castings* are valuable because they enrich the soil.   TRUE   The projections of protoplasm that an amoeba pushes out are called pseudopod or "false feet".   TRUE  
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Mollusks with two matching shells joined by hinges are called bivalves.   TRUE      
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The octopus, squid, and nautilus all belong to the group of mollusks known as cephalopods.   TRUE      
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The jellyfish goes through these stages: larva, polyp,nymph.   FALSE Larvae, young polyp, polyp, polyp producing Medusa, young Medusa, jellyfish      
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The arms of a sea star are called rays.   TRUE      
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The leech, tapeworm, and roundworm are saprophytic worms.   FALSE Parasitic   The shoe-shaped protozoan is the amoeba.   FALSE Amoeba  
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The tissue that produces a mollusk's shell is called the carapace.   FALSE   The part of the cell that directs the work of the cells is the membrane.   TRUE  
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