Blood – definition, composition, and Function Blood is the fluid connective tissue consisting of a fluid matrix, plasma, and formed elements. It is a fluid found in humans and other organisms that transport necessary substances such as nutrients and oxygen to the cells, and it carries away metabolic waste from cells. It is pumped by the heart to various parts of the body. The color of vertebrate blood is bright red when its hemoglobin is oxygenated and dark red when it is deoxygenated. Some animals, such as crustaceans and mollusks…
Read MoreBlood – definition, composition and Function
