Cambridge IGCSE · Biology (0610) · Notes · Topic 9: Ecology and Human Impact on Ecosystems

Topic 9: Ecology and Human Impact on Ecosystems

Ecosystem hierarchy, food webs, 10% energy transfer rule, pyramids of numbers and biomass, carbon cycle, nitrogen cycle bacteria, sigmoid population growth curves, deforestation impacts, eutrophication step-by-step sequence, enhanced greenhouse effect, bioaccumulation and biomagnification, acid rain, and wildlife conservation.