Testing Your Knowledge

1. State two descriptive features of population structure.

2. What resources are necessary for a population to grow?

3. How do the fecundity, survivorship, and age structure of a population affect its growth?

4. Define the following terms:

5. What are the differences between the conditions that result in exponential compared with logistic population growth?

6. How do density-independent and density-dependent factors affect population growth?

7. Why don’t predator populations usually completely decimate prey populations?

8. Distinguish between K-selection and r-selection.

9. Why will the global human population continue to increase for several more years even though the rate of increase has peaked?

1. How does a habitat and niche differ? How does a fundamental niche differ from a realized niche? Describe your habitat and niche.

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