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Discover Biology, 4th Full Edition | StudySpace

Biology in the News

Unit 1
- 1
- 2
- 3
- Interlude A
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 2
- 4
- 5
- 6
- 7
- 8
- 9
- Interlude B
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 3
- 10
- 11
- 12
- 13
- 14
- 15
- Interlude C
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 4
- 16
- 17
- 18
- 19
- Interlude D
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 5
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- Interlude E
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 6
- 31
- 32
- Interlude F
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 7
- 33
- 34
- 35
- 36
- 37
- 38
- Interlude G
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News

Chapter 37

Chapter 37: Ecosystems

What's News Quizzes

Please read this article, Bark Beetles Kill Millions of Acres of Trees in West, and answer the following questions.

1. From 2006 to 2008, the number of acres of dead trees increased from:

a) 1 million to 2 million
b) 1 million to 10 million
c) 1 million to 1.1 million
d) Stayed the same at 1 million

2. What is the cause of the outbreak of the beetle killing the lodgepole pine?

a) Suppression of forest fires has resulted in a population of trees roughly the same age.
b) A decade of drought has weakened the trees.
c) Winters have not been as harsh allowing the beetles to flourish.
d) All of the above are true.

3. What winter temperature would need to be maintained for several weeks to kill the beetle and stop the scourge?

a) 20 to 30° F
b) -30 to -40° F
c) 0 to -10° F
d) -50 to -80° F

4. What are some of the impacts of the tree devastation on human activity?

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