7th Grade Sponges, Cnidarians

10 Questions | Total Attempts: 94

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7th Grade Sponges, Cnidarians

Sponges and Cnidarians are both invertebrates but belong to a different class of organisms. Sponges lack symmetry whereas cnidarians have radial symmetry. What more can you tell about these aquatic species? Take up the simple quiz below and jog your memory on these two sets of invertebrates. All the best!


Questions and Answers
  • 1. 
    The word larva's defintion is....
    • A. 

      A newly born egg that is prettier than mother

    • B. 

      An immature form of an animal

    • C. 

      A group of little cells

  • 2. 
    TRue or False?The structure of sponges is:No symmetry, opening at two ends. hollow nag, collar cells, neutral cells, jelly-like cells, tiny pores that cover surfaceIf incorrect how many errors are in above sentence
  • 3. 
    Colony means..
    • A. 

      A gruop of individual animals

    • B. 

      A state and or city

    • C. 

      A large amount of condensed material

    • D. 

      A sinking material

  • 4. 
    True or False?Sponges are filter feeders and absorb oxygen in dissolved water.Filter feeders are small organisms in water
    • A. 

      True

    • B. 

      False

    • C. 

      Don't know

  • 5. 
    Coral Reef definition is.....
    • A. 

      A home built by cnidarians

    • B. 

      A valley of dormat sponges

    • C. 

      A hollow rock that is eroded by water

  • 6. 
    Cnidarians are
    • A. 

      A series or dormat species that live in species

    • B. 

      A species of non moving sponges

    • C. 

      Organisms that take in food through a cavity anh have stinging cells

    • D. 

      None of the above

    • E. 

      All of the above, but D

  • 7. 
    Poly defintion is..... and  medusa defintion is...
    • A. 

      Vase shaped body plan...Worm shaped body plan

    • B. 

      Worm shaped body plan...head shaped body plan

    • C. 

      Vase shaped body plan......bowl shaped body plan

    • D. 

      None of the above

  • 8. 
    List Sponge adaptations
  • 9. 
    True or False...if false what are the correctionsLife Cycle of sponges is they can reproduce sexually or asexuallythe eggs hatch into larva and grow into adults
    • A. 

      True

    • B. 

      False

    • C. 

      False......no larva

  • 10. 
    Cnidarians get food byusing their __________ and then _______prey.  The__________pull pray until thread like stucture explodes out. This may release venom