6 Which of the following contributes to genetic variability within a population?
1. genetic drift
II. gene flow
III. mutations
IV. non-random mating
OA. I, II, and Ill only
OB. I, II, III, and IV
OC. I and II only
OD. III and IV only

electronic measurement tools display data on a screen after waiting for several minutes.

while some business owners prefer manual record keeping systems, most businesses use an electronic record keeping system - making it easier to capture information, generate reports and meet tax and legal reporting requirements.

explanation:

the answer

b.) bowling ball