Question

There is someone to help me, I do not understand anything at all!!!

Answer 1

Answer:

Look below

Explanation:

Graph 1 does indeed show a sudden drop in fermentation (after the evolution of the first living cells). This change occurred because the evolution of the first living cells allowed them to perform a type of respiration unseen before -- aerobic respiration and non-fermentation forms of anaerobic respiration. In other words, they had a new way of making ATP/energy: steps like the Krebs cycle and oxidative phosphorylation. This change occurred because the amount of oxygen was increasing in the atmosphere, and organisms needed to find a way to adapt. It may relate to the increasing temperature because glycolysis doesn't release carbon dioxide whereas this new form of energy production did. If you have more gases in your atmosphere, you're going to see higher temperatures and global warming.

Graph 2: Label B represents the gas carbon dioxide. Label A showed the gases hydrogen sulfide and methane decreasing. This is because photosynthesis would take out such gases from the atmosphere. Label B shows the level of a gas increasing. It's carbon dioxide because photosynthetic organisms released a lotta oxygen which was toxic for most of them, and cellular respiration organisms evolved and in turn increased CO2 levels.