Explain how the situation described in the article shows that outside environment can help and hurt cell

Cells may be self-sustaining units of life, but they do not exist in isolation from the rest of the organism. A vital component of their existence is their capacity to receive and digest information from their external environment, whether that information refers to the availability of nutrients, changes in temperature, or differences in light levels.

Explanation:

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d. planting trees

the trees take in carbon to make oxygen.

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.