Researchers randomly divide participants into groups. Each group takes a different amount of omega-3 fatty acid supplements dail
y 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
I think that the correct answer is C) To increase the accuracy of the research results and prevent skewness in the data. It is just a research which may lead to valuable information and perhaps another more relevant information.
When cells communicate by the signaling process, one cell produces a signaling molecule that must be received by the signal receptor on or in the responding cell. Signaling molecules are often called ligands, a general term for molecules that bind specifically to other molecules (such as receptors).
