Cells are very different but have similar properties
O2 (oxygen) is a covalent compound
D. because White paper reflects all of the light that hits it. Whatever color that light is, the paper appears to be that color, since paper of that color would reflect only that color if white light was shone on it. That is, blue paper reflects the same color when white light is shone on it as white paper does when blue is shone on it.
