GCSE Biology (AQA)

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Abiotic - Light & Temperature

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Ecology Adaptations, Interdependence and Competition

Abiotic - Light & Temperature

1:23 Abiotic Factors
Spec 4.7.1.2
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  • Light intensity is an important abiotic factor.
  • Light intensity is a physical abiotic factor relevant for exams.
  • It is necessary to explain how abiotic factors like light intensity affect communities.
  • An example of light intensity's effect is observed near the North Pole at the tree line.
  • The North Pole receives relatively low amounts of sunlight due to the Earth's angle.
  • Beyond the tree line, light intensity is too low to support tree growth.
  • Temperature is another significant abiotic factor.
  • Temperature is a physical factor with a wide range of values globally.
  • Certain plants and animals cannot survive outside specific temperature ranges.
  • For instance, orchids cannot survive outdoors in the UK due to low temperatures.

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