he Canvas module described an example of sympatric speciation due to habitat specialization: A population of flies that lives in a forest with two main types of trees: some with red apples and some with green apples. Some individual flies only feed on red apples while others exclusively feed on green apples. In this hypothetical scenario, red apples are more nutritious than green apples, such that flies on the red apple mature quicker than flies on the green apples. This leads to temporal isolation as flies will be ready to mate at different times. In this example, must the choice to eat red or green apples be heritable for speciation to likely occur

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.

the answer is