Over time and with controlled ascent, the human body can compensate somewhat for the reduction in available oxygen molecules through a process commonly known as ____.

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Acclimatization refers to the body's ability to adjust to a decrease in available oxygen at high altitudes over a period of time. This process includes increases in red blood cell count, breathing rate, and blood vessel dilation, which all help to improve oxygen delivery to the body's tissues. Thermogenesis refers to the body's ability to produce heat, metabolism refers to the chemical processes that occur in the body to sustain life, and hypoperfusion refers to a decrease in blood flow to a particular area of the body.

Over Time and with Controlled Ascent, the Human Body Can