By the end of this lab, you will see how some materials diffuse through a semipermeable membrane but others do not. the materials that you examine will differ in molecule size. some will be larger and some smaller. formulate an investigative question for this situation
plants rely on the sun to give them the energy that they need for photosynthesis. all of the choices have something to do with photosynthesis but sunlight plays the main role in the process.
your answer should be natural selection. hope this =^-^=