In people living in mountainous areas, the number of red blood cells in the blood is higher than normal. Explain why.

Air in the mountains contains less oxygen than air on the plains, so that the body does not experience oxygen starvation, the number of red blood cells in the blood increases, which allows you to bind more atmospheric oxygen and deliver it to cells.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.