Bone: The hard, rigid form of connective tissue constituting most of the skeleton of v â¦ ertebrates, composed chiefly of calcium salts.Cartilage: Tough, elastic, fibrous connective tissue that is a major constituent of embryonic and young vertebrate skeletons.
People with the blood type AB are in the greatest demand for plasma donation. Though they make up just 4 percent of the population, their plasma is universal, which means it can be used by anyone. At noncommercial donation sites, people can donate plasma every 28 days, up to 13 times a year. To learn more about donating blood, visit the American Red Cross website.
1 It is recommended you drink a lot in the 24 hours leading to the donation time, especially when it's warm. 2  This includes drinking 4 good sized glasses of water or juice during the 3 hours leading up to your donation. 3  If you are donating plasma or platelets, drink at least 6 to 8 glasses of fluids.