Question

15 ordering 2 points arrange the following in their correct order. initial bacteria population 1 the resistant population multiplies more resistance bacteria 2 the bacteria have all adapted to be resistant and the antibiotic is useless 3 an antibiotic is taken and 99% of the bacteria are killed. the resistant bacteria survives. 4 a single bacteria (out of millions) has a mutation that makes it resistant.

Explanation:

First, a single bacteria has a mutation (step 4). Then, an antibiotic is taken, killing most bacteria but the resistant one survives (step 3). Next, the resistant population multiplies (step 1). Finally, all bacteria are resistant and the antibiotic is useless (step 2).

Answer:

4, 3, 1, 2