Organisms and Populations: Population interactions – mutualism, competition, predation, parasitism; population attributes – growth, birth rate and death rate, age distribution.
(Topics excluded: Organism and its Environment, Major Abiotic Factors, Responses to Abiotic Factors, Adaptations)
Ecosystem: Ecosystems – patterns, components; productivity and decomposition; energy flow; pyramids of number, biomass, energy.
(Topics excluded: Ecological Succession and Nutrient Cycles)
Biodiversity and Conservation: Biodiversity – concept, patterns, importance; loss of biodiversity; biodiversity conservation; hotspots, endangered organisms, extinction, Red Data Book, Sacred Groves, biosphere reserves, national parks, wildlife sanctuaries and Ramsar sites.