The process will behang in mouth. After that it will go through esophegus. Then it will go to small intenstine. Before going to large intenstine they will take out the needed chemicla substances and then only they will go to large intenstine.
It would start in the mouth there the person would break down the apple into smaller pieces with their teeth. The person will swallow and the broken down pieces of apple will head down the esophagus and land in the stomach where it will be broken down even more with the help of enzymes being released from the stomach lining and acid in the stomach it will then head through the intestine where the nutrients will be absorbed. Finally it will be excreted.
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.
<span>The need for a polymerase that wouldn't denature at high temperature. Obviously, organisms that live in hot springs and the like will have adapted enzymes that can survive at these temperatures.</span>
