Which of these is the best example of the substance use of natural resource

Use this diagram of an animal cell to answer the question. where does the first stage of cellular respiration occur? w x y z

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

What are the three types of counseling established by marine corps policy?