The lens of the human eye is a convex lens. That means that when it takes in light from an object, it refracts the light rays, by focusing them on the retina. If the eye is too long, the image will form in front of the retina. This condition is called .

Cells in organisms need food, air, and waste removal. how are these needs met? a. cells get their food from the air and sunlight around them. b. organs and tissues perform these functions for the cells. c. cells share their waste with other cells. d. each cell must specialize in all of these functions.