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Mollusks (Grade 10)

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Mollusks

1. 
What is true about ALL mollusks?
  1. They all have at least 1 shell
  2. They are all hermaphroditic -- no definition of males or females
  3. They are all aquatic
  4. They all have soft-bodies covered with a mantle
 
2. 
In mollusks, the structure that may or may not produce a shell is called the                .
  1. radula
  2. foot
  3. tentacle
  4. mantle
3. 
                includes clams, oysters, and mussels.
  1. Gastropoda
  2. Bivalvia
  3. Cephalopoda
 
4. 
                includes squids and octopuses.
  1. Gastropoda
  2. Bivalvia
  3. Cephalopoda
5. 
                includes snails, sea slugs, and slugs.
  1. Gastropoda
  2. Bivalvia
  3. Cephalopoda
 
6. 
Which of the following is true of cephalopods?
  1. they form pearls in their shells
  2. they are filter feeders
  3. they have no shells
  4. they have well-developed eyes
7. 
                live buried underwater and in sand/mud.
  1. Gastropoda
  2. Bivalvia
  3. Cephalopoda
 
8. 
                move by jet propulsion.
  1. Gastropoda
  2. Bivalvia
  3. Cephalopoda
9. 
                can live in land or in water.
  1. Gastropoda
  2. Bivalvia
  3. Cephalopoda
 
10. 
                have strong abductor muscles to hold shell closed.
  1. Gastropoda
  2. Bivalvia
  3. Cephalopoda
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