What does the root word "erythro-" stand for?

The root word "erythro-" is derived from the Greek word "erythros," which means "red." This prefix is commonly used in medical and scientific terminology to denote something that is red in color. For example, in hematology, erythrocytes are red blood cells that carry oxygen throughout the body. Understanding this root is important for comprehending various terms in the medical and biological fields, as it provides insight into the color or function of the subjects being discussed. The other options represent colors that are not related to the meaning of "erythro-" and thus do not apply in this context.