Natural selection and evolution

• Variation is the raw material for natural selection. It is when there are mutations in a species
• isolation is when the gene flow is stopped or restricted
• natural selection is where there is a favoured trait for an environment making the animals with that trait fit
• Adaptation is the process by which an organism changes in response to its environment.
• biodiversity as a function of evolution is increased by genetic change and evolutionary processes
• a selection pressure is a factor that affects the frequency of a particular allele in a population
• artificial selection is the process of selecting for a particular characteristic in a population
• gene characteristics can be beneficial or not beneficial for an animals fitness