during the rainy months in africa, temporary pools of water form. one fish species, the snakehead fish, is able to walk, using pectoral fins, from pool to pool. other fish in the same area cannot travel from pool to pool. during the dry season, the pools gradually disappear.
if the climate in africa remains the same as described, what would you most likely expect to see after many years?

B.  The snakehead fish will replace the other fish species.

what is the statement?

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.