In studying participants' physiological responses to visual stimuli, Kenneth measures the blood pressure and heart rates of the participants while they watch different genres of films. According to the U. S. Department of Health and Human Services regulations, this study would best be classified as containing risk. 1. no 2. minimal 3. greater than minimal 4. maximum

Minimum Risk

Explanation:

When working with subjects in a research especially humans. There are set regulations that protects the public from a number of health risks.

There are agencies and one of them is the U.S. Department of Health and Human Services regulations.

According to this regulation body, minimum risk means the magnitude and probability of harm anticipate in the study are not greater than those normally encountered in daily life or during physical and psychological tests.

Since the above study by Kenneth does not pose any harm beyond the normal. It can be classified as containing minimum risk.

the correct answer would be 6 feet.

answer: a) a compound microscope has a greater magnification ability than a simple microscope.

explanation: