Question

question 5 of 10 what part of the blood carries oxygen? a. hemoglobin b. trachea c. capillary d. platelet

Explanation:

Hemoglobin is a protein in red - blood cells that binds to oxygen and transports it throughout the body. The trachea is part of the respiratory tract for air - passage, not a part of blood. Capillaries are tiny blood vessels, not a component of blood that carries oxygen. Platelets are involved in blood clotting, not oxygen - carrying.

Answer:

A. Hemoglobin