To determine which bacteria grow best at a pH of 8 based on the graph you mentioned, we need to look at the growth curves for bacteria A and B at that specific pH level.
Since I can't see the graph, I can provide guidance on how to answer the question based on the information you would see in it:
- If bacteria A shows the highest growth rate at pH 8 compared to bacteria B, then the answer would be c Bacteria A.
- If bacteria B shows the highest growth rate at pH 8 compared to bacteria A, then the answer would be d Bacteria B.
- If both bacteria show significant growth at pH 8 but one outperforms the other, you would choose the one that grows best.
- If neither bacteria A nor B shows any growth at pH 8, then the answer would be b Neither Bacteria A and B can survive a pH of 8.
- If both bacteria can grow at pH 8 but neither is favored, the answer would be a Bacteria A and B.
Please refer to the graph to make the determination based on the above criteria.