The four evolutionary forces are natural selection, gene flow, ...

[mpobi80]

The four evolutionary forces are natural selection, gene flow, mutation, and __________.
 
  Fill in the blank(s) with correct word

Question 2

What is meant by the law of competitive exclusion?
 
  a. When one species successfully dominates an ecological niche, it will subdue all other species in the area.
  b. When two or more species cohabit in the same area, they will each tend to specialize in a subset of foods toallow peaceful coexistence.
 c. When two closely related species compete for the same niche, one will bring about the other's extinction.
  d. In a balanced ecological niche, there will be no competition between species.
  e. Species that begin competing for food supplies will eventually begin to compete for each other's mates as wellcompetition spreads.

[alvinum]

Answer to Question 1

genetic drift

Answer to Question 2

c

[mpobi80]

Excellent

[frankwu0507]

Thanks for the timely response, appreciate it