Problem:

Question 1: Four of the five answers listed below are characteristics of mutations. Select the exception.

a. are predictable

b. can be beneficial

c. are random

d. have effects that depend on the environment

e. are heritable

Question 2: Four of the five answers listed below are types of selection exhibited by nature. Select the exception.

a. artificial

b. disruptive

c. stabilizing

d. directional

e. sexual

Question 3: Four of the five answers listed below can upset genetic equilibrium. Select the exception.

a. random mating

b. genetic drift

c. mutation

d. natural selection

e. gene flow

Please provide correct answer.