A tennis ball could be used to represent the Sun because it is round and yellow. Which of these other things could also be a good model for the Sun? A.
a Kleenex box
B.
an eraser
C.
a light bulb
D.
an empty cup

Which process moves molecules and has these traits? -moves from high concentration to low concentration -moves from uneven distribution to even distribution -can occur when there is no membrane o o active transport in a cell diffusion osmosis o passive transport in a cell