Acclimatization is the process by which an organism adapts to new climatic conditions or a new environment. This process can occur at the level of the individual as well as at the level of a population or an entire species. Acclimatization allows the organism to function more effectively under new conditions, reducing the negative impact of environmental changes.
An example of acclimatization may be changes in hair and skin color among different racial groups. This is an adaptation to different climatic conditions. For example, people with lighter skin and hair usually live in regions with less sunlight.
Acclimatization may also include physiological changes, such as an increase in the number of red blood cells in the blood for more efficient oxygen transport under low-oxygen conditions at high altitudes.
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