Mollusca/Ecninoderms

10 Questions | Total Attempts: 124

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Mollusca/Ecninoderms

This is a quiz on the phylum mollusks


Questions and Answers
  • 1. 
    Which of the following is not included in the phylum Mollusca?
    • A. 

      Snails

    • B. 

      Clams

    • C. 

      Octopi

    • D. 

      Jellyfish

  • 2. 
    What is trocophore?
    • A. 

      Digestive tracks

    • B. 

      Larval stage of development

    • C. 

      Storage area

    • D. 

      Chains of ganglia connected by a ventral nerve cord

  • 3. 
    How many classes are Mollucks divided into?
    • A. 

      4

    • B. 

      7

    • C. 

      3

    • D. 

      6

  • 4. 
    The Largest Class of Mollusks is?
    • A. 

      Bivalvia

    • B. 

      Cephalopoda

    • C. 

      Gastropoda

    • D. 

      Scaphopoda

  • 5. 
    How many tentacles does a squid have?
    • A. 

      10

    • B. 

      12

    • C. 

      8

    • D. 

      16

  • 6. 
    The type of circulatory system found in most mollusks is
    • A. 

      Closed

    • B. 

      Open

    • C. 

      Spiral

    • D. 

      They Dont have one

  • 7. 
    How do Mollusks reproduce?
    • A. 

      Sexually

    • B. 

      ASexually

  • 8. 
    True or False The body of a Mollusk is generally divided into two regions: Head-foot and Visceral Mass.
    • A. 

      True

    • B. 

      Flase

  • 9. 
    The Main Feeding adaption many mollusks have is called
    • A. 

      Ganglia

    • B. 

      Radula

    • C. 

      Mantle

    • D. 

      Mantle cavity

  • 10. 
    A paired cluster of nerve cells is called
    • A. 

      Ganglia

    • B. 

      Radula

    • C. 

      Mantle

    • D. 

      Mantle cavity