genetic drift is the in allele frequencies from generation to generation and is especially important in populations.

1. PH of 3. As you can see, this is where the enzyme is at 100%
2. The probable PH for enzyme A between 1.5-2.5 as the stomach requires a very acidic pH to maintain digestive health
3. Enzyme A does not work at a PH of 6
4. Enzyme B is working at its maximum rate at a PH of 8
5. The probable PH of enzyme B is 5.5-7.0 as Luminal pH in the proximal small bowel ranges from 5.5 to 7.0
6. If enzyme A were produced in the intestine it would not carry out its usual function of digestion. Not only would the stomach acid likely cause damage to the intestine, a PH closer to neutral is required for absorption of nutrients to occur