Answer: In order to compensate for the low partial pressure of oxygen at altitude, the human body undergoes a number of physiological changes. A vital component in this process is the increase in the concentration of circulating haemoglobin. The role of HIF‐1α, erythropoietin and red blood cells in this acclimatisation process is described, together with the fall in plasma volume that increases the concentration of haemoglobin in the early stages of hypoxic exposure.
Explanation:
His immune system is using the first line of defense. His body is using purging methods that is caused by irritation of the hairs in his nose. This defense system<span> uses physical and chemical barriers that are prepared to defend the body from infection.</span>
Answer:
The answer would be 4. just yourself
Explanation:
If you only have yourself for support then theres no system in place
Cholera is caused by drinking contaminated water. Government should respond in many ways like new rules for clean water act, wastewater disposal rules, increase current fines and federal fines.
<h3>What is the reason for spread of cholera?</h3>
Cholera is caused by a bacterium namely Vibrio cholerae. It is caused by drinking contaminated water. Characterized by diarrhea and dehydration.
Cholera can be prevented by using following ways:
- A single dose live oral cholera vaccine has been approved by FDA.
- Lawmakers should propose new rules under the established clean water act.
- States should use certain wastewater disposal rules.
- Federal agencies should increase current fines for noncompliance of public water.
- Agencies should collaborate to construct initiatives to globally promote clean water use.
Thus, the correct options are A, B, C and D.
To learn more about cholera spread, visit:
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