Examlex
A gnomonic light source is located at the surface of a globe.
Hemoglobin
A protein in red blood cells responsible for carrying oxygen from the lungs to the body's tissues and returning carbon dioxide from the tissues back to the lungs.
Oxygen Transporter
A protein that facilitates the movement of oxygen molecules from the lungs to the rest of the body.
Heme
An iron-containing compound that forms an essential part of hemoglobin and some other biological molecules, responsible for binding oxygen.
Renal Artery
The renal artery is a blood vessel that supplies the kidneys with blood, enabling them to filter and cleanse the blood, remove waste and produce urine.
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