Class-12 Biology Sample Paper – 3 (Solved) | CBSE Term 2 Examination 2022

ByRamakanta Biswal

This Class-12 Biology Sample Paper – 3 (Solved) covers the following portion:

Unit-X : Ecology and Environment

Chapter-13: Organisms and Populations
  • Organisms and environment: Habitat and niche, population and ecological adaptations;
  • Population interactions – mutualism, competition, predation, parasitism;
  • Population attributes – growth, birth rate and death rate, age distribution.
Chapter-15: Biodiversity and its 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.

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