Human eye color is determined by pigmentation of the iris. The iris is a muscular connective tissue that contains a small hole in its center (the pupil) that allows light to enter the eye. The&hellip
Posts By crystal wall
Is it possible to drink too much water?
Living organisms are largely composed of water. In fact, approximately 70% of a cell’s weight is due to water. Additionally, most of the chemical reactions that occur in cells require an aqueous environment. Water is&hellip