In science writing, what is the purpose of historical points of reference? to help readers connect prior knowledge to new discoveries

to help readers sympathize with past scientists

to help readers understand an especially difficult concept or idea

to help readers understand the complete history of a scientific idea

to help readers connect prior knowledge to new discoveries because then it is a foundation for future discoveries

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.

potentially fatal issues such as heart attacks and strokes

explanation: