Atechnique that enables a person to control physiological responses that are normally involuntary, such as level of blood pressure, is known as

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

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels