8.2

Energy Flow Through Ecosystems

AP Biology

Energy Flow Through Ecosystems

Trophic structure

Trophic levels

Food chains vs. food webs

The 10% rule: energy transfer efficiency

Consequences of the 10% rule

Ecological pyramids

Pyramid of energy

Pyramid of biomass

Pyramid of numbers

Gross and net primary productivity

Biogeochemical cycles

The carbon cycle

The nitrogen cycle

The water cycle

The phosphorus cycle

Vocabulary