Biology 12

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26.2 Aquatic or Hydrospheric Ecosystem 26.2.1 Productivity of Aquatic Ecosystem26.2.2 Fresh Water Lakes26.2.3 Intervention of Man in Aquatic Ecosystem

26.3 Terrestrial or Lithospheric Ecosystem 26.3.1 Light, Nutrients and Water26.3.2 Adaptations for Terrestrial Ecosystem26.3.3 Division of Terrestrial Ecosystem

26.4 Some Major Ecosystems in Pakistan 26.4.1 Temperate Deciduous Forests26.4.2 Coniferous Alpine and Boreal Forests26.4.3 The Grass Land Ecosystem26.4.4 Desert Ecosystem26.4.5 Tundra Ecosystem26.4.6 Humans and Ecosystems