Answer:
The answer is oxygen and glucose
Atom, molecule, cell, tissue, organ, and organ system
Sex is important because its how we reproduce we create new life so that they can create new life and so on with out sex theres no life if that makes sense
The sun heats up water on the earth which causes the water to evaporate thefore the hot water vapor rises up to higher altitudes where it's colder which causes condensation, without the sun this could never happen
