AP Bio · Ecology

Unit 8: Ecology

33 questions from past AP exams, newest first. Page 2 of 2.

Question 4

Free-response questions 2010Open answer

Question 4 — 4. The diagram above shows the succession of communities from annual plants to hardwood trees in a specific area over a period of time. (a) Discuss the expected changes in biodiversity as the stages of succession…

Source: College Board — AP Biology, Free-response questions, 2010

Question 3

Free-response, form B 2010Open answer

Question 3 — 3. Bacteria play central biological roles. (a) Bacteria may act as =producers =parasites =mutualistic symbionts =decomposers Select THREE of the ecological roles above. For each one you choose, describe how bacteria…

Source: College Board — AP Biology, Free-response, form B, 2010

Question 4

Free-response, form B 2010Open answer

Question 4 — 4. On a trip to a dense forest, a biologist noticed that millipedes (small invertebrates) were plentiful under logs but were rarely seen in any other location. (a) Propose THREE environmental variables (two abiotic and…

Source: College Board — AP Biology, Free-response, form B, 2010

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