Question

athletes training at high altitudes adapt to air with lower oxygen levels than air at sea level. which cells are most likely to increase in number as a result of this adaptation? neurons red blood cells white blood cells muscle cells

Explanation:

Red blood cells are responsible for transporting oxygen. At high - altitudes where oxygen levels are low, the body increases the number of red blood cells to improve oxygen - carrying capacity. Muscle cells, white blood cells, and neurons do not have this specific altitude - related adaptation for oxygen transport.

Answer:

red blood cells