How do biotechnologies such as hybridization and the introduction of mutations increase genetic variation?

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

Which would be the most useful source of evidence to support mcneill's contention?

How will you manage your time to accomplish the necessary tasks both on the job and at home?