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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
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    - 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
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    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 6
- 31
- 32
- Interlude F
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    - 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 31

Chapter 31: Plant Structure, Nutrition, and Transport

What's News Quizzes

Please read this article, “Smart” Flower Bulbs Pull Themselves to Deeper Ground, and answer the following questions.

1. A lily bulb's ability to move was in response to what type of stimulus?

a) Water
b) Soil composition
c) Light
d) Heat

2. The movement of the bulbs to deeper ground is referred to as what type of growth?

a) Positive growth
b) Negative growth
c) Downward growth
d) Reversal growth

3. Movement of the bulb in the ground is accomplished by what mechanism?

a) Hydraulic shift of cortical cells
b) Contractile proteins like those found in muscle cells
c) Disintegration of the bulb tissue and then reforming of that tissue at the new depth
d) None of the above mechanisms is the correct answer.

4. What advantage does adjusting the bulb depth have for the plant?

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