Fever: A. Slows the body’s metabolic rate to conserve energy B. Is always considered dangerous C. Influences the liver to release large amounts of iron into the system D. Is the resetting of the body’s temperature by chemicals. E. Two of the above are correct.

The correct answer is:

Two of the above are correct. (E.)

Explanation:

A person is said to have a fever when the body temperature rises above the normal range of 36°C to 37°C (98 - 100° F). Fevers are a common medical sign looked out for in cases of infection or disease. Fevers occur mostly when foreign agents (antigens), mostly in form or chemicals and toxins, enters the body, activating the release of certain chemicals known as pyrogens (e.g Interleukin-1, ) produced by macrophages. These pyrogens bind to the receptors in the hypothalamus of the brain, which is in charge of temperature regulation, causing the body temperature to rise. This increase of temperature is mostly thought to be a response mechanism by the body, for killing harmful bacteria and/or viruses that are temperature sensitive.

From the explanation given above, the options which states that a fever; Is always considered dangerous (B.), and  Is the resetting of the body’s temperature by chemicals (D), are the correct options, because fevers are indicators of an infection, hence they are considered dangerous, and they are the resetting of the body's temperature by chemical (pyrogens).

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

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