Which statement best explains the results of the experiment?

A. The dark bacteria showed resistance to the drug.

Explanation:

According to the given situation, it is evident from the bacterial culture in the first plate containing the generation 1 bacteria. In generation 1 the bacteria which were exposed to the drug of the type which were resistant as well as non-resistant to the drug. But after successive generations the less resistant bacteria became susceptible to the drug and decline in numbers. Upto generation 20 only the resistant bacteria survived. Those were the dark bacteria.

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'