At one time, scientists proposed a principle called the central dogma. This principle stated that in the body, a chemical substance called DNA contains information. This information passes from DNA to RNA, but not from RNA to DNA. Then in 1970, scientists proved that some types of RNA can transfer information to DNA. What can you conclude from this information? a
Scientists have made many life-saving discoveries.
b
Scientists work together to advance scientific knowledge.
c
Scientists often respond to what they see as needs in society.
d
Scientists may find new information that causes them to modify their ideas.

doctors i believe if i'm wrong sorry

yo

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.