AP ENVIRONMENTAL SCIENCE
Master Study Guide: Concepts, Equations, and Visual Structures
Unit 1: Ecosystem Dynamics
Focus on the flow of energy and the cycling of matter.
CRITICAL DIAGRAM: The Nitrogen Cycle
When you export this to a Google Doc, use this space to insert a diagram showing:
• Fixation: N → NH (Bacteria/Lightning)
2 3
• Nitrification: NH + → NO - → NO -
4 2 3
• Denitrification: Nitrate back to N gas.
2
Unit 2: Biodiversity & Island Biogeography
CRITICAL DIAGRAM: Island Biogeography Graph
Insert a graph showing two lines: Immigration (highest on large/near islands) and
Extinction (highest on small/far islands). The intersection determines Species
Richness.
Unit 3: Populations
Phase Birth Rate Death Rate Population Trend
1. Pre-industrial High High Stable / Low
Master Study Guide: Concepts, Equations, and Visual Structures
Unit 1: Ecosystem Dynamics
Focus on the flow of energy and the cycling of matter.
CRITICAL DIAGRAM: The Nitrogen Cycle
When you export this to a Google Doc, use this space to insert a diagram showing:
• Fixation: N → NH (Bacteria/Lightning)
2 3
• Nitrification: NH + → NO - → NO -
4 2 3
• Denitrification: Nitrate back to N gas.
2
Unit 2: Biodiversity & Island Biogeography
CRITICAL DIAGRAM: Island Biogeography Graph
Insert a graph showing two lines: Immigration (highest on large/near islands) and
Extinction (highest on small/far islands). The intersection determines Species
Richness.
Unit 3: Populations
Phase Birth Rate Death Rate Population Trend
1. Pre-industrial High High Stable / Low
