Answer:
oxygen gas
red blood cells
platelets
Explanation:
» Concepts
Your blood is composed of four main things: red blood cells (that transport oxygen), white blood cells, platelets, and plasma. Red blood cells transports oxygen and takes out CO2, white blood cells fight bacteria and viruses, and platelets clot together to stop bleeding.
Bile is a fluid that is produced by the liver and stored in the gallbladder, so it's not a main component of blood.
