The gulf of mexico has several "dead zones," in which very few organisms or signs of life exist. several research teams are interested in finding the pollution source that causes the dead zones. which team would be the least likely to show bias? a) researchers employed by oil companies
b) researchers employed by power plants along the coast
c) researchers employed by the environmental protection agency
d) researchers employed by farmers and landscapers along the mississipi river

The answer is C)  researchers employed by the environmental protection agency

answer: 4

explanation: 8

you know that this symptom is misleading and quite often is related to: heart attack

a heart attack is a condition that occurs when the blood flow that transports oxygen to the heart muscle is damaged or cut off completely. the coronary arteries that supply the heart muscle with blood flow can be blocked by the accumulation of plaque. also, when the plaque within the heart artery breaks, it creates blood clot that can also hinder the blood flow. men that are over 45years of age and women that are over 55years of age are at risk of having a heart attack. the symptoms of a heart attack include chest discomfort, chest pain, coughing, and shortness of breath.