Download NAME: Dr. Bram AP Biology Ecology Unit Worksheet (Campbell

NAME: ________________________________________
Dr. Bram
AP Biology Ecology Unit Worksheet (Campbell Biology, Chapters 52-55) (40 pts.)
1. Define the following terms:
a. Population
b. Community
c. Ecosystem
Population Ecology
2. Define population density.
3. What are the three patterns of population distribution/dispersion? What factors may lead to each?
4. (A) Write the equation for exponential growth, and (B) draw a graph showing exponential (J-shaped) growth of a
population.
5. (A) Write the equation for logistic growth, and (B) draw a graph showing logistic population growth.
6. What is meant by the carrying capacity, K, of a population?
7. What is intraspecific competition? Give some examples of intraspecific competition.
8. Distinguish between r-strategists and K-strategists. Give an example of each.
9. Differentiate between density-dependent and density-independent factors. Give two examples of each.
10. What are age-structure diagrams, and how can we use them as predictive tools?
11. How does genetic diversity affect survival of a population or a species?
Community Ecology
12. What is interspecific competition? Give some examples of interspecific competition.
13. What is an ecological niche? Distinguish between the fundamental niche and the realized niche of an organism.
14. Define the following types of symbioses and give an example of each type:
a. Parasitism
b. Commensalism
c. Mutualism
15. Define species diversity. Identify and describe the two components of species diversity.
16. How does species diversity affect community stability?
17. Review food chains and food webs.
18. What is a keystone species, and how can its loss affect a community?
19. Distinguish between primary and secondary succession.
Ecosystem Ecology
20. State the 1st and 2nd Laws of Thermodynamics.
21. Distinguish between gross primary production (GPP) and net primary production (NPP).
22. What is a limiting nutrient?
Disturbances to communities and ecosystems
23. Describe the intermediate disturbance hypothesis.
24. Why are invasive species often harmful to communities and ecosystems? Give an example of a harmful invasive
species.
25. What is slash-and-burn agriculture, and why isn’t it sustainable?
26. How can our nutrient enrichment of croplands lead to algal blooms and eutrophication of water bodies?
27. What is biological magnification?
28. What is habitat fragmentation?