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Geography Optional 300+ Score Pack · Model answer

Discuss the role of environmental factors in the distribution of plants and animals.

  • Biogeography

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The distribution of plants and animals across the Earth's surface is profoundly conditioned by the physical and chemical properties of the environment in which they exist. Environmental factors do not merely fix the outer limits of survival of a species; they also govern reproduction, productivity, behaviour, and inter-specific interactions, thereby determining the very structure and composition of ecosystems.…

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What the full answer covers

  • 1. Light
  • (a) Light Quality
  • (b) Light Intensity
  • (c) Light Duration (Photoperiod)
  • 2. Temperature
  • (a) Plants
  • …and 10 more sections, with a conclusion
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