Complete the following concept web to show how lifestyle choices can affect
circulatory health.

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

Stephen is a student who wants to test his knowledge of medical terminology. which option could he use?

The smallest parts of these that retain their original properties are called