Homework Quiz #20

9 Questions | Total Attempts: 183

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Homework Quizzes & Trivia

This quiz is based on homework assignments from the Holt Modern Biology Textbook.


Questions and Answers
  • 1. 
    How does the heart of a mammal differ from the heart of a lizard?
  • 2. 
    List two unique features of a bird's skeleton.
    • A. 

      Skeleton is made of cartiliage and is rigid

    • B. 

      Skeleton is made of hollow bones and is lightweight

    • C. 

      Skeleton is heavy and sturdy

    • D. 

      Skeleton is made of pores and air sacs

    • E. 

      Skeleton is dry and hard

  • 3. 
    What are two functions of feathers?
    • A. 

      Strength and support

    • B. 

      Wind resistance and control

    • C. 

      Beauty and appearance

    • D. 

      Flight and insulation

    • E. 

      None of the avove

  • 4. 
    Describe two characteristics shared by Archaeopteryx and modern birds.
    • A. 

      Covered in feathers and have wings

    • B. 

      Have hollow bones and and a furcula

    • C. 

      Have beaks and tails

    • D. 

      All of the above

    • E. 

      None of the above

  • 5. 
    In what way does a gizzard compensate for the lack of teeth in birds?
    • A. 

      The gizzard digests food for the bird

    • B. 

      The gizzard rips food for the bird

    • C. 

      The gizzard mashes food for the bird

    • D. 

      The gizzard grinds food for the bird.

    • E. 

      None of the above

  • 6. 
    What is the function of the keeled sternum?
    • A. 

      To help with running

    • B. 

      The attachment point for the gizzard

    • C. 

      The attachment point for some of the flight muscles

    • D. 

      All of the above

    • E. 

      None of the above

  • 7. 
    How does hair help a mammal maintain its body temperature?
    • A. 

      Hair protects the body helping to retain body heat

    • B. 

      Hair suppots the body helping to retain body heat

    • C. 

      Hair calms the body helping to retain body heat

    • D. 

      Hair insulates the body helping to retain body heat

    • E. 

      None of the above

  • 8. 
    Why was it advantageous for the early mammals to be nocturnal?
    • A. 

      To be protected from the sun

    • B. 

      To avoid competition and being eaten by larger animals

    • C. 

      To protect their young

    • D. 

      All the best food can be found at night

    • E. 

      None of the above

  • 9. 
    A mammal eats about 10 times as much food as a lizard of the same size. Explain this difference.
    • A. 

      A mammal needs more food to fuel its rapid metabolism than a lizard

    • B. 

      A mammal needs more food to keep its teeth stronger than a lizard

    • C. 

      A mammal needs more food to hunt more so than a lizard

    • D. 

      A mammal needs more food to keep it warm than a lizard does

    • E. 

      None of the above

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