The Living World: Biodiversity
APES Unit 2 Flashcards
Review biodiversity, ecosystem services, island biogeography and succession with free AP Environmental Science flashcards.
Test your recall
How to studyChoose All flashcards to start studying.
What is covered in APES Unit 2?
Unit 2 explores how biodiversity supports ecosystems and how populations and communities respond to environmental change. Choose a topic below to study its five flashcards.
- 2.1 Introduction to Biodiversity (5 cards)
- 2.2 Ecosystem Services (5 cards)
- 2.3 Island Biogeography (5 cards)
- 2.4 Ecological Tolerance (5 cards)
- 2.5 Natural Disruptions to Ecosystems (5 cards)
- 2.6 Adaptations (5 cards)
- 2.7 Ecological Succession (5 cards)
The Living World: Biodiversity has a published 6–8% weighting in the multiple-choice section. Practise connecting definitions to examples, graphs and environmental scenarios.
How to study biodiversity with flashcards
- Recall and compare.Answer before revealing the card. Distinguish similar terms, such as species richness and genetic diversity, or primary and secondary succession.
- Use an example.Explain a service provided by a wetland, predict which island receives more immigrants or describe how a species responds outside its tolerance range.
- Review what needs work.Mark uncertain cards as Needs practice and revisit that deck. Save helpful cards as favorites, then try the Unit 2 quiz without your notes.
Island biogeography check: all else equal, a larger island nearer the mainland is expected to support more species than a smaller, distant island. Explain immigration and extinction processes rather than memorizing the pattern alone.
Succession check: ask whether soil remains after a disturbance. Soil retention helps distinguish secondary succession from colonization of newly exposed rock in primary succession.
APES Unit 2 flashcard FAQs
What do APES Unit 2 flashcards cover?
This set contains 35 flashcards across all seven Unit 2 topics: biodiversity, ecosystem services, island biogeography, ecological tolerance, natural disruptions, adaptations and ecological succession.
How much of the AP Environmental Science exam is Unit 2?
Unit 2: The Living World: Biodiversity accounts for 6–8% of the multiple-choice section in College Board’s course framework. Review all nine units when planning exam preparation.
How are species richness and species evenness different?
Species richness is the number of species in a community. Species evenness describes how similar their relative abundances are. Two communities can have equal richness but different evenness.
What is the difference between primary and secondary succession?
Primary succession begins on newly exposed or formed substrate with little or no soil. Secondary succession follows a disturbance where soil remains, such as regrowth after a fire.
Does my Unit 2 flashcard progress save?
Favorites and self-assessment results save in this browser when local storage is available. Unit 2 progress is separate from Unit 1 and does not sync across devices. Reset progress clears this deck’s saved results.