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Module 3: Biodiversity and Evolution
2.3.1 Biodiversity
(a) define the terms:
Species A group of individual organisms with similar morphological, physiological and behavioural
characteristics, whose members are able to interbreed freely to produce viable offspring.
Habitat The type of environment where an organism lives.
Ecosystem All the living organisms (biotic)…

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Module 3: Biodiversity and Evolution
Rare 020%
Estimate the percentage cover of each species this is the proportion of the area within the quadrat which
it occupies.
Use an abundance scale, such as the ACFOR scale, by estimating which one of these best describes the
abundance of each species within…

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Module 3: Biodiversity and Evolution

You can use a quantitative survey to measure this.
For plants, take a sample and then count the number of plants of each species per unit area
(larger plants), or measure the percentage cover of each species (smaller plants e.g. grass and
herbs).
For animals,…

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