Evolution

Evolution

Adaptation
1. Beneficial Traits
  1. helps survive longer
  2. helps reproduce successfully
  3. Environment determines
Natural Selection
1. Species live in particular environments
  1. Competition
    1. Always existing
    2. Food, water, space, mates
    3. show some variation in physical traits
2. Change in environment
  1. Biotic
    1. Predator/food source
    2. Living change
  2. Abiotic
    1. Non-living change
    2. ex. Climate and pH change
3. Individual w/ mutation
  1. survives longer
    1. reproduces more
4. Generations pass
  1. trait becomes common
    1. those w/o trait dies off
      1. Species change for the better
        adaptation throughout
Variation
1. In DNA
  1. Mutation
  2. Recombination
2. All populations show

Resource summary

	Created by Cindy Nguyen about 8 years ago