• Evolution is the change in an allele frequency over time
  • Natural selection is one explanation of how evolution functions
  • Selection Pressure refers to factors such as food, predators, diseases and competition on a species which results in the frequency of an allele to alter within a gene pool
  • Gene Pool refers to the total number of all alleles within a population at a given time.

Types of Competition:

  1. Intraspecific Competition: Competition between the same species
  2. Interspecific Competition: Competition between different species

Over Production

  • Over production is the result of a high birth rate resulting in intraspecific pressures
  • Those with the allele which is advantageous provide them the limited resources to survive
  • Therefore the allele is passed on