Bio1331 Animals - Evolution - Lophotrochozoans (Lecture Four)

11 Questions

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Bio1331 Animals - Evolution - Lophotrochozoans (Lecture Four)


Questions and Answers
  • 1. 
    True or False?All protostomes are triploblastic.
    • A. 


    • B. 


  • 2. 
    • A. 

      Spiral cleavage, determinate

    • B. 

      Radial cleavage, determinate

    • C. 

      Spiral cleavage, indeterminate

    • D. 

      Radial cleavage, indeterminate

  • 3. 
    There are two clades of protostomes.Name one of those clades.
  • 4. 
    Lophotrochozoans have two main important features that set them apart from ecdysozoans.Name one of these two features.
  • 5. 
    What is the "Scientific" name for segmented worms?
  • 6. 
  • 7. 
    What is the Scientific name for flatworms?
  • 8. 
    Complete the following sentence:Mollusks have a _________, a fold of tissue that covers the organs of the visceral mass, secreting a hard, calcareous shell.
  • 9. 
    Complete the following sentence:One of the components of a mollusk's tripartite body is the _______________, containing most of the organism's internal organs.