A is all the individuals of the same species that live together in a specific area.

population

Explanation:

These are the levels of ecological organization ( from smallest to largest): organisms, populations communities, ecosystem, and biopshere.

Organisms: This level is a single organism from a species.

Population: This level is all the organisms of the same species that love in the same area at the same time

Community: This level is all the populations of different species that live in a certain area.

Ecosystem: This level is the community and all the abiotic factors that influence that community

Biosphere: This is level is Earth.

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.

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.