(5 points) 12
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Why do bacteria numbers start to decline when treated with antibiotic C but then
begin to increase as time goes on?
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A) Some bacteria with resistance to antibiotic C were selected for over time.
B) Additional bacteria were added to the experimental group.
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C) Antibiotic C degraded and thus was no longer effective.
D) This is the normal course of bacterial growth no matter which antibiotic is
applied.

The correct answer is - option A) Some bacteria with resistance to antibiotic C were selected for overtime.

Explanation:

In the given question it is stated that the bacteria number initially declines when they are treated with antibiotic C but then started to increase as time passes on. It is clear with the given data that initially the number of bacteria declines due to bacteria does not resistant to antibiotic C but after some time some bacteria developed resistance to the antibiotic and were selected and increased overtime.

The correct answer is - option A

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."