Examlex
What makes a mineral element essential for plant growth?
Hemoglobin
An iron-containing protein in red blood cells that transports oxygen from the lungs to the body's tissues.
Red Blood Cells
Cells in the blood that carry oxygen from the lungs to the body's tissues and carbon dioxide back to the lungs to be exhaled.
Fibrin
A protein involved in the blood clotting process, which works by forming a fibrous mesh that impedes the flow of blood.
Blood Vessel
Tubular structures carrying blood through the tissues and organs; a vein, artery, or capillary.
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