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♻️AP Environmental Science Review

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Unit 3 - Populations

♻️AP Environmental Science
Review

Unit 3 - Populations

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Resources

Unit 3 covers Populations. This includes Generalist and Specialist species along with K and r species. We look at how to interpret age structure diagrams which leads to calculating Crude Birth/Death Rates, Population Growth Rate, Population Doubling time (Rule of 70).