生物学  TPO16-L3 Foraging Behavior Among Beavers

TPO16-L3

Foraging Behavior Among Beavers

Listen to part of a lecture in a biology class.

 



  1. What is the lecture mainly about?
  • A. Different foraging strategies among animals.
  • B. Methods beavers use to gather building materials.
  • C. Decisions beavers make about where to live.
  • D. Choices beavers face when foraging.

 

  1. What difference between aspen trees and ash trees does the professor point out?
  • A. Aspen trees are easier to transport.
  • B. Aspen trees provide better wood for construction.
  • C. Aspen trees provide less nutrition for beavers.
  • D. Aspen trees have more overall value to beavers.

 

  1. What does the professor identify as the two central issues involved in beavers foraging behavior?
    [CHOOSE 2 ANSWERS]
  • A. How far from home to forage.
  • B. How to cope with competition.
  • C. What size tree to cut down.
  • D. What time of year material for construction is available.

 

  1. What does the professor say about the cutting down of large trees?
  • A. Beavers generally prefer cutting down large trees to small trees.
  • B. Beavers generally do not travel long distances to cut down large trees.
  • C. Beavers will not cut down large trees of certain species.
  • D. Beavers use large trees mainly for the purpose of building shelters.

 

  1. According to the professor, why do beavers generally forage at night?
  • A. Beavers are safer from predators if they forage at night.
  • B. Foraging at night requires less energy than foraging in the daytime.
  • C. Beavers stay with their offspring during the daytime.
  • D. Beavers face less competition for food from other animals during the night.

 

  1. Why does the professor say this: 🎧

 

  • A. To explain her reasoning.
  • B. To indicate why her belief was wrong.
  • C. To give an example of a decision beavers make.
  • D. To explain the reason beavers travel far for wood.


答案:
D D AC B B A

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