The only haploid cells in humans (with 23 chromosomes and no matching pairs) are: A. sperm and egg cells

B. skin and muscle cells

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 situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box

Sequence how oxygen accumulated in the atmosphere and the effect it had on life by completing the flowchart