Phylum Platyhelminthes, Class Turbellaria

18 Questions | Total Attempts: 43

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Phylum Quizzes & Trivia

Today, we’ll be looking at another member of the phylum Platyhelminthes; the Turbellaria! These are members of the flatworm phylum and are not exclusively parasitic. What do you know about them? Let’s take a look!


Questions and Answers
  • 1. 
    How many species are found in the class turbellaria
    • A. 

      Over 200

    • B. 

      Over 300

    • C. 

      Over 400

    • D. 

      Over 450

  • 2. 
    Most in the class Turbellaria are ____ cm up to ___ cm
    • A. 

      1, 50

    • B. 

      1, 30

    • C. 

      1, 100

  • 3. 
    Species in the class turbellaria are _________ and predators. 
  • 4. 
    Rhabdites are ___ like specialized ________ cells, that form the protective _______ sheath.
  • 5. 
    Turbellarians have _______ glands and ________ glands. The first attaches to substrates. The latter releases a chemical to dissolve sticky substrate.
  • 6. 
    Turbellarians move by ______ using cilia and/or muscular ________.
  • 7. 
    Digestion in turbellarians is partly _______; enzymes secreted from _________ glands break down food outside the body.
  • 8. 
    Waste and gas exchange occurs by ________ through the body wall.
  • 9. 
    ___________ turbellarians are in osmotic balance with their environment .
    • A. 

      Freshwater

    • B. 

      Marine

  • 10. 
    Freshwater turbellarians are ____________ with their environment
  • 11. 
    The turbellarians nervous system ranges from primitive ______ ___ to a ______ like system.
  • 12. 
    Have sensory and ______ neurons and they are capable of integrating and responding to _______.
  • 13. 
    ________ are sensory lobes projecting from the side of the head containing _______ receptors.
  • 14. 
    Turbellarians have ______ which are photosensitive areas containing ______ receptors.
  • 15. 
    During asexual reproduction, _______ fission is used that creats two new animals called _____.
  • 16. 
    Reproductive organs are __________ in orgin.
  • 17. 
    Typically ______ __________ with direct development.
  • 18. 
    Examples of Turbellarians are:
    • A. 

      Schistosomes

    • B. 

      Dugesia

    • C. 

      Metacercaria

    • D. 

      Convaluta