Every enzyme works in a certain ph. For example amylase, an enzyme for digestion works in a highly acidic enviroment. The ph of stomach acid is what amylase needs to breakdown carbohydrates.
Answer:
the one that its is found in dna that is where everthing is found
Explanation:
The correct answer is the circulatory system. Hope that helps :)
5. Bose Einstein consendates
Heating, burning