B1.4.1 Adaptations

All the basic information you will need for AQA, taken directly from the specification.

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Plant Competition

Plants compete for:

  • Light
  • Space
  • Water
  • Nutrients
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Animal Competition

Animals compete for:

  • Food
  • Water
  • Mates
  • Territory
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Adaptation

An adaptation is a feature which enables an organism to survive in the conditions of its usual and natural habitat.

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Extremophiles

Extremophiles are organisms which live in extreme environments. This may mean:

  • High salt
  • High pressure
  • High temperature
  • Low temperature
  • High levels of radiation
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Surface area to volume ratio

This is an animal adaptation which works as follows:

1. In cold climates:

Small surface area to volume ratio to reduce heat loss.

2. In warm climates:

Large surface area to volume ratio to increase heat loss.

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Animal adaptations

There may be adaptations to:

  • Legs
  • Teeth
  • Ears
  • Paws
  • Colour
  • Fur
  • Fat
  • Eyes
  • Permeability
  • Hair
  • Mouth
  • Storage
  • Nose
  • Water Loss
  • Size
  • Shape
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Plant Adaptations

There may be adaptations to:

  • Stem
  • Leaves
  • Cuticle
  • Roots
  • Shape
  • Surface
  • Colour
  • Products e.g. CO2
  • Growth
  • Seeds
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