Question

If bacteria are exposed to an antibiotic for the first time. they will: A. lack resistance because without previous exposure to the antibiotic they cannot develop resistance. B. have resistance because their ancestors were exposed to this antibiotic or a similar antibiotic. C. lack resistance because their immune system needs to see the antibiotic in order to develop resistance. D. have resistance if mutations or horizontal gene transfer provide some members of the population with resistance.

Answer 1

Answer: A

Step-by-step explanation:

Their immune system lacks the antibodies to combat the antibiotic and need to be exposed to it first before it develops.