Question

what is the purpose of the sterile spreader?
to stimulate mutations for antibiotic resistance.
to ensure that the bacteria adhere to the agar plate.
to uniformly disperse bacterial cells across the surface of
the agar plate.

Explanation:

A sterile spreader is used in microbiology (a subfield of Biology, under Natural Science) to evenly spread bacterial cells on an agar plate. The first option is incorrect as spreaders don't stimulate mutations. The second is wrong because bacteria adhere due to the agar's properties, not the spreader. The third option correctly describes the spreader's role in uniform dispersion.

Answer:

C. To uniformly disperse bacterial cells across the surface of the agar plate.