State Board (Odisha) Syllabus: Biology 12

UNIT V: ECOLOGY AND ENVIRONMENT
  • Organisms and environment Population interactions mutualism
  • competition. predation
  • parasitism; Population attributes-growth
  • birth rate and death rate
  • age distribution. Ecosystem: Patterns
  • components; productivity and decomposition; Energy flow; Pyramids of number
  • biomass
  • energy