Question

evolution
when bacteria are exposed to antibiotics, some individual bacteria may have genetic variations that make them more resistant to the effects of the drugs. these resistant bacteria have a survival advantage over non - resistant bacteria and are more likely to survive and reproduce. over time, this can lead to the dominance of antibiotic - resistant strains within bacterial populations. this is an example of natural selection driving the evolution of bacteria in response to selective pressure from antibiotics.
which of the following is a potential example of evolution?
bacteria becoming resistant to antibodies over times as they get more exposed.
a tiger growing up and maturing.
a single organism transforming into a completely different species.

Explanation:

Evolution involves changes in the genetic - makeup of a population over time. Bacteria developing antibody - resistance is due to genetic variations and natural selection in the population. A tiger growing up is development, not evolution. A single organism cannot transform into a different species as evolution occurs in populations.

Answer:

A. Bacteria becoming resistant to antibodies over times as they get more exposed.