AQA Biology Unit 2 Section 1 :Variation

Variation exists between all individuals

Variation is the difference that exist between individuals. There are two types:

• Interspecific - the variation that exists between different species.
• Intraspecific - the variation that occur within a species

Intraspecific variation is caused by genetic and environmental factors

Genetic

• All the members of a species have the same genes
• But individuals with a species can have different versions of those…