The graph below shows the species richness of a community undergoing secondary succession. The letters R, S, T, and U identify four distinct seres. Answer the questions by identifying the correct sere. Seres can be used as an answer once, more than once, or not at all. Number of Species R Time Which sere is dominated by r-selected species? R Which sere is the climax stage? S U Which sere shows the EFFECT of strong competition? T

Human Anatomy & Physiology (11th Edition)
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Chapter1: The Human Body: An Orientation
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The graph below shows the species richness of a community undergoing secondary succession. The letters R, S, T, and U identify four distinct seres. Answer the questions by identifying the correct sere. Seres can be used as an answer once, more than once, or not at all.

**Graph Description:**

- The graph is a line graph with "Number of Species" on the vertical axis and "Time" on the horizontal axis.
- The curve starts from a low point, rises to a peak, and then declines slightly but remains above the initial level.
- Four stages or seres are labeled along the curve: R, S, T, and U.
  - "R" is at the beginning of the curve, representing the initial rise.
  - "S" is at the peak of the curve.
  - "T" is after the peak, during the decline.
  - "U" is at the end of the curve, where it levels off.

**Questions:**

1. **Which sere is dominated by r-selected species?**
   - **Answer:** R

2. **Which sere shows the EFFECT of strong competition?**
   - **Answer:** T

3. **Which sere is the climax stage?**
   - **Answer:** S
Transcribed Image Text:The graph below shows the species richness of a community undergoing secondary succession. The letters R, S, T, and U identify four distinct seres. Answer the questions by identifying the correct sere. Seres can be used as an answer once, more than once, or not at all. **Graph Description:** - The graph is a line graph with "Number of Species" on the vertical axis and "Time" on the horizontal axis. - The curve starts from a low point, rises to a peak, and then declines slightly but remains above the initial level. - Four stages or seres are labeled along the curve: R, S, T, and U. - "R" is at the beginning of the curve, representing the initial rise. - "S" is at the peak of the curve. - "T" is after the peak, during the decline. - "U" is at the end of the curve, where it levels off. **Questions:** 1. **Which sere is dominated by r-selected species?** - **Answer:** R 2. **Which sere shows the EFFECT of strong competition?** - **Answer:** T 3. **Which sere is the climax stage?** - **Answer:** S
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