The important role of the atmosphere is to supply oxygen, water, carbon dioxide and nutrients. It also protects all living things from extreme temperatures and radiation (protects us from harmful solar rays).
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy!
Maybe, not sure, may need to check yahoo answers for this one
Explore a wide variety of cells, from bacteria to human neurons, using a compound light microscope. Select a sample to study, then focus on the sample using the coarse and fine focus controls of the microscope. Compare the structures found in different cells, then perform tests to see if the sample is alive.
Well, I think it would be most likely Athletic Ability.
