Chapter 8: Natural Selection

Question 1

artificial selection

Answer 1

similar to natural selection, except that it results from human activityex: breeding for specific traits in dogs

Question 2

gene flow

Answer 2

the transfer of alleles from one population to another; occurs when organisms or their gametes move location

Question 3

Darwin’s postulates

Answer 3

1. there is variation in population2. variation is heritable3. there is differential reproductive success4. this differential success is not random, it is due to variation→ organisms with best characteristics are “naturally selected”