Sort the variables of these three studies based on whether they are independent or dependent variables. Study 1: the effect of light on flowering patterns of plants Study 2: the effect of penicillin on the growth of E. coli Study 3: the effect of progesterone on the ovulation of rats light flowering patterns progesterone penicillin growth of E. coli ovulation

b) the inside picture would look at a very high temperature in a very low ph

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.