When light is refracted a. it keeps moving in the same direction as it passes into a new medium. b. it is absorbed as it strikes the surface of a new medium. c. it changes it direction and stays in the same medium. d. it changes its direction as it passes into a new medium.

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.