Phylum Cnidaria: The Hydroids, Jellyfishes, Anemones, And Corals.

31 Questions | Total Attempts: 165

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Phylum Cnidaria: The Hydroids, Jellyfishes, Anemones, And Corals.

The phylum Cnidaria covering Hydra, Obelia, Gnionemus, Physalia, Aurelia, Matridium, Meandrina, Metridium, Gorgonia, Tubipore.


Questions and Answers
  • 1. 
    Cnidarians are eumetazoan.
    • A. 

      True

    • B. 

      False

  • 2. 
    The hydroids, jellyfish, and anemones that belong to this group all have a basic body plan that exhibits _________?
    • A. 

      Bilateral Symmetry

    • B. 

      Radial Symmetry

    • C. 

      TopsyTurvy Semmetry

  • 3. 
    If something is diploblastic, this means it is derived from what?
    • A. 

      One tissue layer.

    • B. 

      Two tissue layers.

    • C. 

      Three tissue layers.

  • 4. 
    What are sessile forms that are cylindrical, with the mouth found on the upper side and tentacles extending upward.
  • 5. 
    What are umbrella shaped forms that have the mouth located on the lower side and thd tentacles extending down?
  • 6. 
    The epidermis is the _____________?
    • A. 

      External Covering

    • B. 

      Internal Covering

    • C. 

      The tentacles

  • 7. 
    A layer of gelatinous material, ______________, is found between the internal and external layers and gives this group their soft, jelly-like feel.
  • 8. 
    The stinging cells are called __________?
  • 9. 
    Cnidocytes contain structures called ____________ that are capable of injecting neurotoxins.
  • 10. 
    The genus Hydra is part of what class?
  • 11. 
    The genus Obelia is part of what class?
  • 12. 
    Genus Gonionemus is part of what class?
  • 13. 
    Genus Physalia is part of what class?
  • 14. 
    Genus Aurelia is part of what class?
  • 15. 
    Genus Metridium is part of what class?
  • 16. 
    Genus Meandrina is part of what class?
  • 17. 
    Genus Gorgonia is part of what class?
  • 18. 
    Genus Tubipora is part of what class?
  • 19. 
    What is the genus of this image?
  • 20. 
    What is the genus of the species in this image?
  • 21. 
    What is the genus of the species in this image?
  • 22. 
    What is the genus of this species?
  • 23. 
    What is the genus name of the specimen in this image?
  • 24. 
    What is the genus name of this specimen?
  • 25. 
    What is the genus name of this specimen?
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