All the organisms of a particular species that live in the same place
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Define genetic diversity
The total number of different alleles in a population
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What is a positive of having high genetic diversity?
Allows the ability to adapt to a change in the environment and allows natural selection to occur
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What is directional selection?
When environmental conditions change, individuals with phenotypes suited to the new conditions will survive and pass on their genes, over time the mean on the population will move towards these characteristics
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Give an example of directional selection
Antibiotic resistance
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What is stabilising selection?
Occurs when environmental conditions stay the same, individuals closest to the mean are favoured and any new characteristics are selected against, low diversity
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Give an example of stabilising selection
Birth weight
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Define a niche
The role of a species within an environment
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What is anatomical adaption?
Changes to body structure
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What is physiological adaption?
Changes to the body’s processes
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What is behavioural adaption?
Changed to actions
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Other cards in this set
Card 2
Front
Define genetic diversity
Back
The total number of different alleles in a population
Card 3
Front
What is a positive of having high genetic diversity?
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