Phylum Nematoda Quiz

12 Questions | Total Attempts: 1197

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Phylum Quizzes & Trivia

In this quiz about roundworms, learn all about these diverse animal phyla – known scientifically as the nematodes - which inhabit a broad range of environments and boast over 25,000 different species. What can you tell us so far?


Questions and Answers
  • 1. 
    All nematodes contain a(n) :
    • A. 

      Incomplete digestive tract

    • B. 

      Biradial symmetry

    • C. 

      Cuticle

  • 2. 
    One function of a cuticle is to maintain internal __________ pressure. 
  • 3. 
    Another function of a cuticle is to provide ___________ _________. 
  • 4. 
    And another function of the cuticle is to keep the host from________ the roundworm.
  • 5. 
    Nematodes move by _________, using a ___________ muscle. They flail.
  • 6. 
    A pseudocoelum is a fluid filled cavity containing ________ organs and forming a ________ skeleton. 
  • 7. 
    Most nematodes are 
    • A. 

      Mononecious

    • B. 

      Dioecious

    • C. 

      Asexual

  • 8. 
    Males are smaller than females and may have an accessory copulatory structure. 
    • A. 

      True

    • B. 

      False

  • 9. 
    Fertilized eggs hatch into larvae, and then undergo __ molts to become an adult. 
  • 10. 
    Ecolysis is how a nematode's ________ is shed. 
  • 11. 
    The classes are based on the presence or absence of ___________.
  • 12. 
    Phasmids are _______ organs located near the anus that function in ________ reception.