Shawn, age 16, is being treated for leukemia, which is a condition in which there is a marked increase in abnormal

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

Cells destroy body cells infected by a virus or bacteria. killer t t memory t none of the above

The structure that houses the cells genetic information.