Classes Calcarea And Hexactinellida

7 Questions | Total Attempts: 37

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Classes Calcarea And Hexactinellida

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Questions and Answers
  • 1. 
    The Class Calcarea contains what body form?
    • A. 

      Leuconoid

    • B. 

      Syconoid

    • C. 

      Asconoid

    • D. 

      All of the above

  • 2. 
    Class Hexactinellida's skeleton is made up of __________ spicules, usually _____ rayed
  • 3. 
    The common name for Hexactinellida sponges is:
    • A. 

      Glass sponge

    • B. 

      Bath Sponge

    • C. 

      Calcareous Sponge

  • 4. 
    The common name for the Euplectella is the _______ _______ ________
  • 5. 
    Those in the class Demospongiea are made up of 
    • A. 

      Calcareous spicules

    • B. 

      Siliceous spicules

    • C. 

      Spongin

  • 6. 
    In the most common class demospongiae the ___________ body form is the only form. 
  • 7. 
    Demospongiae are both marine and fresh water
    • A. 

      True

    • B. 

      False

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