Question

Darwin hypothesized that there are definite steps to natural selection. Consider the model of bacterial resistance to antibiotics. Use the Roman numerals (I - III) to guide you through the steps to describe how Darwin would explain antibiotic resistance.

Answer 1

B

Step-by-step explanation:

In any population, variation exists. Some bacteria are resistant to antibiotics. Most bacteria die, but the bacteria that are resistant survive and reproduce.

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Answer 2

In any population, variation exists. Some bacteria are resistant to antibiotics. Most bacteria die, but the bacteria that are resistant survive and reproduce.

Step-by-step explanation:

According to Darwin, natural selection favours those organisms which are better adapted to live in an environment. These organisms are able to survive and pass on their traits to their children.

In a population, genetic variations exist. There might be bacteria which are not resistant to antibiotics and there are bacteria which are resistant to the antibiotic. When an antibiotic is added to the bacterial medium, the bacteria which have antibiotic resistance are able to survive and pass on their traits to the offsprings. The non-resistant bacteria die.