生物学 TPO27-L3 Sauropods

TPO27-L3

Sauropods


 

 

  1. What does the professor mainly discuss?
  • A. Comparisons between land animals and ocean-going animals of the Mesozoic era
  • B. Comparisons between sauropods and modern animals
  • C. Possible reasons why sauropods became extinct
  • D. New theories about the climate of the Mesozoic era

 

  1. What point does the professor make when she compares blue whales to large land animals?
  • A. Like large land animals, blue whales have many offspring.
  • B. Like large land animals, blue whales have proportionally small stomachs.
  • C. The land environment provides a wider variety of food sources than the ocean.
  • D. The ocean environment reduces some of the problems faced by large animals.

 

  1. According to the professor, what recent finding about the Mesozoic era challenges an earlier belief?
  • A. Sauropod populations in the Mesozoic era were smaller than previously believed.
  • B. Oxygen levels in the Mesozoic era were higher than previously believed.
  • C. Ocean levels in the Mesozoic era fluctuated more than previously believed.
  • D. Plant life in the Mesozoic era was less abundant than previously believed.

 

  1. Compared to small animals, what disadvantages do large animals typically have?
    [CHOOSE 2 ANSWERS]
  • A. Large animals require more food.
  • B. Large animals have fewer offspring.
  • C. Large animals use relatively more energy in digesting their food.
  • D. Large animals have greater difficulty staying warm.

 

  1. Why does the professor discuss gastroliths that have been found with sauropod fossils?
  • A. To show that much research about extinct animals has relied on flawed methods
  • B. To show that even an incorrect guess can lead to useful research
  • C. To give an example of how fossil discoveries have cast doubt on beliefs about modern animals
  • D. To give an example of a discovery made possible by recent advances in technology

 

  1. What did researchers conclude from their study of sauropods and gastroliths?
  • A. That gastroliths probably helped sauropods to store large quantities of plant material in their stomachs
  • B. That sauropods probably used gastroliths to conserve energy
  • C. That sauropods may not have used gastroliths to aid in their digestion
  • D. That sauropods probably did not ingest any stones

答案:
B D D AB B C

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