Answer:
D
Explanation:
Although natural gas and petroleum are super close, petroleum has increased significantly since the 1950s.
Answer:
the optimal pH for enzyme function is 6 but it can function well between a pH range of 2 to 7 which is the pH in small intestine. At highly alkaline pH the enzyme will denature.
Explanation:
800,000 to 1.5 million nephrons on average per kidney