Colonies Colonies 30000 25000 20000 15000 10000 25400 25200 25000 24800 24600 24400 5000 24200 24000 0 Streptococcus Treated

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Colonies Colonies 30000 25000 20000 15000 10000 25400 25200 25000 24800 24600 24400 5000 24200 24000 0 Streptococcus Treated with Ampicillin 3500 3000 2500 Streptococcus Treated with Amoxicillin 2000 1500 1000 500 Streptococcus Ampicillin Figure 1 Colonies of Streptococcus after applications of ampicillin 0 Ampicillin ng mL 4000 3500 3000 2500 2000 1500 1000 500 0 1 2 3 4 5 6 7 8 9 10 Streptococcus Amoxicillin Figure 2 Colonies of Streptococcus after applications of amoxicillin Amoxicillin ng mL reptococcus bacteria were plated on petri dishes with agar media containing increasing concentrations of ampicillin antibiotic Figure I was created from the results of that experiment The experiment was repeated with amoxicillin other antibiotic Identify the lowest concentration of ampicillin that eliminated at least 50 of the streptococcus colonies Describe the effect of amoxicillin on streptococcus A researcher suggests using these two antibiotics simultaneously to have a greater efficiency in eliminating the streptococcus Use the data above to evaluate this hypothesis This strain of streptococcus was previously susceptible to all known antibiotics Use data from the figures above to

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