Question

Explain how, in human individuals, exposure to a different altitude can lead to changes in gene expression that lead to physiological responses; explain how these physiological responses enable maintenance of homeostasis.

Answer 1

Exposure to a different altitude can lead to changes in gene expression and physiological responses that enable the maintenance of homeostasis. By increasing the number of red blood cells in circulation and adjusting gene expression, the body adapts to lower oxygen levels at higher altitudes.

Step-by-step explanation:

Exposure to a different altitude can lead to changes in gene expression that result in physiological responses and enable the maintenance of homeostasis. When an individual is exposed to a higher altitude, the body senses the lower oxygen levels and initiates acclimatization. This process involves increasing the number of red blood cells in circulation, which helps to ensure adequate oxygen delivery to the tissues. By adjusting gene expression and increasing physiological responses like increased breathing rate and production of red blood cells, the body adapts to the lower oxygen levels and maintains homeostasis.