Download Theory of Evolution by Natural Selection

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Dual inheritance theory wikipedia, lookup

Koinophilia wikipedia, lookup

Polymorphism (biology) wikipedia, lookup

Population genetics wikipedia, lookup

Microevolution wikipedia, lookup

Group selection wikipedia, lookup

Natural selection wikipedia, lookup

Transcript
Darwin’s Theory
Evolution by
Natural Selection
Evolution by Natural Selection
• All organisms overproduce.
(He got this idea from Malthus!)
• Food and resources are limited
 therefore, there is a struggle to survive
• Natural (genetic) variation exists in all
species.
• The environment “selects” which
organisms are best suited for survival.
(Thus, the term, Natural Selection)
• The survivors can reproduce!
Natural Selection
• Darwin’s theory of
evolution by Natural
Selection can be
summarized in the
points above.
• For a little more
detail from Charles
himself, click here.