Aprotein called p53 can keep cells from dividing. to prevent cell division, this protein most likely stops a. respiration b. mitosis c. mutation d. osmosis.

I think the answer is mutation. mutation can prevent the normal cell division from happening

The plates kept rubbing together

The infrared (ir) and the ultraviolet(uv) represent the two extremities of the visible spectrum (400-700nm). while ir represents electromagnetic radiation with wavelengths longer than those of visible light, uv represents wavelengths shorter than visible light