Question

3. Cite Evidence Use an example to explain how natural selection influences evolution through mutations.

Answer 1

One example of how natural selection influences evolution through mutations is the development of antibiotic resistance in bacteria. When bacteria are exposed to antibiotics, some may possess genetic mutations that make them resistant to the effects of the drug. These resistant bacteria are then able to survive and reproduce, passing on their resistance traits to future generations. Over time, the bacterial population as a whole becomes more resistant to the antibiotic as the non-resistant strains are eliminated through natural selection. This process demonstrates how mutations, combined with natural selection, can lead to the evolution of new traits within a population.