Selective Breeding and Natural Selection

Artificial Selection/ selective breeding

the process by which people choose to breed particular organisms with desirable features

Inbreeding

selective breeding between two closely related individuals

Cross breeding

Selected breeding where one individual with a desirable trait is bred to another individual with a different desirable trait

Natural Selection

the process in which an environmental factor acts on a population and results in some organisms having more offspring that survive to reprodue than others

Selection pressure

the effect of the selective agent on a population eg. predators

Selective agents

an environmental factor that acts on a population and results in some organisms having more offspring that survive to reproduce than others

Evolution

any change in the heritable traits within a population across generations

Speciation

the process by which one species splits into two or more separate species

variation

different in characteristics due to different genes