Respuesta :
Higher levels of hemoglobin represent an adaptation that allows animals to survive in high altitudes. This protein transport oxygen in the blood.
Red blood cells are specialized cells that transport oxygen to all cells of the body, which is required to obtain energy by a process called cellular respiration.
Hemoglobin is a protein present in red blood cells and plays a fundamental role in oxygen transport.
Hemoglobin contains a specific chemical prosthetic group (heme group) that binds to oxygen.
Learn more about hemoglobin here:
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