In polar areas, solar radiation strikes Earth at a . small angle large angle left angle right angle

When partially digested carbs reach the colon, bacteria convert part of that food into hydrogen and carbon dioxide gasses

It might. it might because if you think about if they discovered if we came from (lets say something funny like aliens) and thy found cells that matched and they would have t do more research about it but would most probably change their theory.

Well,what i learned was that unlike many other  endothermic  reactions,  photosynthesis  does not absorb energy as heat. instead, during plants absorb energy from sunlight to turn carbon dioxide and water into oxygen and glucose, which is a type of sugar molecule. the energy is stored in the glucose molecules, ready to be used when needed. 

Are there any options? if so, any of them hinting at passing genes down from one generation to the next, would be your answer.