Question 30 The graph below illustrates the growth curves for two types of bacteria, A and as the pH of their surrounding mediums change of bacteria A Growth of bacteria B Concentration of bacteria ( millions per 100 mL ) 40- 30- 20- 10- of medium Which Bacteria A and B or both, grow best at a pH A and Bacteria and can a

To answer your question regarding the growth of bacteria A and B based on their pH tolerance as depicted in the graph, I would need more details or a visual reference to analyze the growth curves effectively. However, I can provide a general approach to interpret such graphs.

1. Look at the y-axis, which represents the concentration of bacteria in millions per 100 mL.
2. Analyze the x-axis, which represents the pH levels of the medium.
3. Identify the peak of each curve on the graph. The highest point for bacteria A will indicate the pH at which bacteria A grows best, while the highest point for bacteria B will indicate the optimal pH for bacteria B.
4. Compare the optimal pH levels for both bacteria. Note if they grow best at similar or differing pH values.
5. If both curves peak at the same pH value or close to it, both bacteria A and B can thrive at that pH.

If you'd like a more specific analysis, please provide details about the pH values and the concentration levels shown in the graph, and I'll be glad to help!