Phylum Porifera: The Sponges

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Phylum Porifera: The Sponges

Questions over a part of the phylum Porifera, including the Scypha, Leucosolenia, Euplectella, and Spongia.

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Questions and Answers
  • 1. 
    What are metazoans?
    • A. 

      A group containing unicellular animals.

    • B. 

      A group of multicellular animals.

    • C. 

      A group of animals with true tissues.

  • 2. 
    Sponges are eumetazoans.
    • A. 

      True

    • B. 

      False

  • 3. 
    Sessile means that as adults, sponges are
    • A. 

      Freely moving organisms.

    • B. 

      Permanently attached, unmoving.

    • C. 

      Only found on land.

  • 4. 
    Sponges are filter feeders as adults.
    • A. 

      True

    • B. 

      False

  • 5. 
    Sponges have a skeleton made up of collagen, spongin, and inorganic spicules covered by flatted cells called ___________.
    • A. 

      Choanocytes

    • B. 

      Archaeocytes

    • C. 

      Pinacocytes

  • 6. 
    _______ form the support structure of the skeleton and ca be calcium (calcareous) or silicon (siliceous) based.
    • A. 

      Asconoid

    • B. 

      Syconoid

    • C. 

      Spicules

    • D. 

      Gemules

  • 7. 
    Embedded in the skeleton are flagellated cells called ________.
    • A. 

      Choanocytes

    • B. 

      Archaeocytes

    • C. 

      Pinacocytes

  • 8. 
    Asconoid forms have choanocytes lining the ___________.
    • A. 

      Spongocoel

    • B. 

      Radial canals

    • C. 

      Choanocyte chambers.

  • 9. 
    Syconoid sponges have choanocytes lining the _________.
    • A. 

      Spongocoel

    • B. 

      Radial Canals

    • C. 

      Choanocyte Chambers

  • 10. 
    Leuconoid sponges have choanocytes lining the ___________.
    • A. 

      Spongocoel

    • B. 

      Radial Canals

    • C. 

      Choanocyte Chambers

  • 11. 
    Sponges are grouped according to the type of spicules they contain and the body form they exhibit.  What are the three body forms sponges exhibit?
    Discuss
  • 12. 
    Sponges can only reproduce asexually.
    • A. 

      True

    • B. 

      False

  • 13. 
    Sponges are usually monoecious.
    • A. 

      True

    • B. 

      False

  • 14. 
    Some sponges can produce environmentally resistant capsules called _________.
  • 15. 
    Scypha (Grantia) are apart of which class?
  • 16. 
    Leucoslenia is in what class?
  • 17. 
    Euplectella is in what class?
  • 18. 
    Spongia is in what class?
  • 19. 
    Scypha has what kind of body form:  Asconoid, Syconoid or Leuconoid?
  • 20. 
    Spongia has what kind of body form: Asconoid, Syconoid or Leuconoid?
  • 21. 
    What is the genus of this image? - ProProfs
    What is the genus of this image?
  • 22. 
    What are these? - ProProfs
    What are these?
  • 23. 
    What are these? - ProProfs
    What are these?
  • 24. 
    What genus is this sponge? - ProProfs
    What genus is this sponge?
  • 25. 
    What genus is this sponge? - ProProfs
    What genus is this sponge?
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