2. Angina pectoris occurs when: A) a coronary artery is totally occluded by plaque.
B) myocardial oxygen demand exceeds supply.
C) one or more coronary arteries suddenly spasm.
D) myocardial oxygen supply exceeds the demand.

What are your thoughts on nonhuman trials? do you feel that testing should be done on animals? what are the advantages and disadvantages with nonhuman trails?

Which is the term used for a drug that increases the activity of the nervous system

What is the best way to use the clean water act to address the issue of dirty water and diseases that plague asmall community? a) to report the number of cases of people who havecholera symptomsb) to provide health guidelines about effects from waterborne diseases c) to enforce standards that focus on chemical dischargeinto bodies of waterd) to carry out research that investigates how dirty wateraffects human health