Why conserve wildlife? Part 2

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  • Why conserve Wildlife?
    • Medical Benefits
      • Physiological research
        • Many species for research such as nerve function,leprosy & drug teratology (causes of birth defects
          • Nerve function - Squid have wider nerve cells that are easier to study than mammal nerves. Improved understanding of heart disease, stroke
          • Leprosy - Armadillo are among the few animals that can catch leprosy &are used in the study disease & production of vaccinations
      • Development of new medicines
        • Many plants produce biologically active chemicals - medical uses in treating human disease
          • Poppies - painkillers morphine & codeine
          • Yew tree - Taxol for breast cancer
          • Cinchona tree from South America - Quinine for malaria protection
    • Resources
      • Wood for construction, paper, fuel, resins
      • Insecticides
      • Cosmetics
      • Dyes
    • Earths life support systems
      • Role of plants in hydrological cycle
        • Transpiration  & Interception
      • Soil formation
        • Organisms release nutrients from dead organic matter.
        • Foliage & roots of plants help protect soil by reducing erosion caused by wind & water
      • Species Interdependence
        • Food supplies
        • Pollination - flowers pollinated by animals. More reliable than wind pollination
        • Seed dispersal - Animal dispersal more reliable than wind dispersal.
        • Habitat provision - one species may provide a habitat for others.e.g. birds nesting in trees
  • Fibres - cotton, wool, flax, hemp
    • Resources
      • Wood for construction, paper, fuel, resins
      • Insecticides
      • Cosmetics
      • Dyes
  • Maintenance of atmosphere
    • Earths life support systems
      • Role of plants in hydrological cycle
        • Transpiration  & Interception
      • Soil formation
        • Organisms release nutrients from dead organic matter.
        • Foliage & roots of plants help protect soil by reducing erosion caused by wind & water
      • Species Interdependence
        • Food supplies
        • Pollination - flowers pollinated by animals. More reliable than wind pollination
        • Seed dispersal - Animal dispersal more reliable than wind dispersal.
        • Habitat provision - one species may provide a habitat for others.e.g. birds nesting in trees
    • Organisms that photosynthesis remove CO2 and release oxygen
  • Look at conditions for life on Earth for why
    • Organisms that photosynthesis remove CO2 and release oxygen

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