Most enzymes' optimum pH is neutral or close to neutral, like amylase found in saliva, which has an optimal pH = 6.8. Some enzymes prefer a more drastic pH, like pepsin, which can have an optimum pH of 1.7 to 2. Sometimes enzyme pH optima depends on where the enzyme is found.
F1 stands for first filial (daughter) generation
<span>F2 stands for second filial (daughter) generation</span>
Answer:
B. a food chain
Explanation:
Food chain: a hierarchical series of organisms each dependent on the next as a source of food.
The anwer is C. It makes more sence and is more mature.
The answer is a. Nitrogen
