A scientist is studying two strains of the same species of bacteria, labeled A and B. Strain A has the trait of resistance to the drug penicillin, while Strain B is not resistant to penicillin. After populations of the two strains are mixed together, which is the MOST LIKELY way that Strain B becomes resistant to penicillin? A. The bacteria in Strain B form a mutualistic relationship with the bacteria in Strain A.
B. The bacteria in Strain B undergo random mutations, some of which provide resistance to penicillin.
C. The bacteria in Strain B form endosperms, which are temporary multicellular organisms.
D. The bacteria in Strain B undergo asexual reproduction, which passes advantageous traits to offspring.
E. Bacteria in both strains exchange genetic information through the process of conjugation.

In 1959, doctors began using the powerful antibiotic methicillin to treat infections of staphylococcus aureus, but within two years, methicillin-resistant strains of s. aureus (mrsa) appeared. how did the resistant strains of s. aureus emerge? in 1959, doctors began using the powerful antibiotic methicillin to treat infections of staphylococcus aureus, but within two years, methicillin-resistant strains of s. aureus (mrsa) appeared. how did the resistant strains of s. aureus emerge? staphylococcus aureus bacteria that were able to synthesize cell walls using a protein that was not affected by methicillin survived the methicillin treatments and reproduced at higher rates than did other individuals. over time, these resistant individuals became increasingly common. in response to treatment of staphylococcus aureus infections with methicillin, some bacteria began to synthesize cell walls using a protein that was not affected by methicillin. these bacteria survived the methicillin treatments and reproduced at higher rates than did other individuals. over time, these resistant individuals became increasingly common. in response to treatment of staphylococcus aureus infections with methicillin, bacterial populations gradually began to synthesize cell walls using a protein that was not affected by methicillin.

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Why is it to call the calvin cycle the light independent reactions vs the dark reactions