Ecology typically accounts for about 10%–15% of the AP Biology multiple-choice section. That makes it worth dedicated practice even if your class spent only a few weeks on it.
Interactions among organisms and with their environments, ecosystems, energy flow, and conservation. Expect questions involving Ecosystem structure and energy transfer (food webs, trophic levels); Population ecology, carrying capacity, and community interactions; Biogeochemical cycles and human impacts on ecosystems.
When you miss a question, tag it by skill (vocabulary, calculation, inference). Patterns in your misses show where to reread your notes.
Select Generate above to pull a fresh MCQ for this unit. You can still switch subjects or units if you want to compare topics side by side.