To know where to start and to have a model to follow
Oxygen
During aeroobic respiration oxigen reacts with sugar or glucose, producing carbon dioxide, water, and energy.
During anaerobic respiration when there is not enough oxygen, cells break down glucose into lactic acid and energy.
Answer:Slate is denser than shale because its atoms and molecules become more compact due to the presence of intense pressure. Due to this event, the minerals are squeezed and realigned in such a way that the axes are directed to where the pressure was applied.
Explanation:
All living things are made up of cells. All non-living things are not.
A dill pickle is technically "living" since it was once growing as a plant. Therefore, the dill pickle has cells.
However, the rest of the items do not, as they are non-living things.