Summary of Theory of Natural Selection

Question	Answer
Overproduction	More offspring produced than will ultimately survive and reproduce.
2. Variation	Inheritable features vary from individual to individual.
3. Change in environment	Changes in climate, topography, food supply, predators, etc.
4. "Survival for existence"	Mainly competition within the species, for food, habitat, survival from being eaten.
5. "Survival of the fit" (not necessarily the strongest)	Those with more adaptive traits tend to survive longer and/or produce the most offspring; these are the naturally selected
6. Inheritance of "selected" features	Traits involved are already inheritable, but may involve new combinations.
7. New species, better adapted to the new environment	When the collective traits of the environment differ significantly from the earlier population, and can no longer reproduce with the earlier population.

Resource summary

	Created by J Y Wong over 10 years ago