What allowed scientists to create clotting factor for hemophilia.

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

The mixture of sperm and fluids from the seminal vesicles, prostate gland, and cowper's glands is called

The dense layer of connective tissue that surrounds an entire skeletal muscle is the