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AP Environmental Science

Unit 1: The Living World: Ecosystems

1.1 Introduction to Ecosystems

1.2 Terrestrial Biomes

1.3 Aquatic Biomes

1.4 The Carbon Cycle

1.5 The Nitrogen Cycle

1.6 The Phosphorus Cycle

1.7 The Hydrologic (Water) Cycle

1.8 Primary Productivity

1.9 Trophic Levels

1.10 Energy Flow and the 10% Rule

1.11 Food Chains and Food Webs

Unit 2: The Living World: Biodiversity

Unit 3: Populations

Unit 4: Earth Systems and Resources

Unit 5: Land and Water Use

Unit 6: Energy Resources and Consumption

Unit 7: Atmospheric Pollution

Unit 8: Aquatic and Terrestrial Pollution

Unit 9: Global Change

AP/Environmental Science/Concept/Unit 1: The Living World: Ecosystems

Unit 1: The Living World: Ecosystems

Syllabus: 2025
Section: —
Level: —

Exam analysis

Most tested topics

Introduction to Ecosystems
Terrestrial Biomes
Aquatic Biomes
The Carbon Cycle
The Nitrogen Cycle
The Phosphorus Cycle
The Hydrologic (Water) Cycle
Primary Productivity
Trophic Levels
Energy Flow and the 10% Rule
Food Chains and Food Webs