the authors discuss different scientists in the last two sentences of the passage primarily to
provide examples and support for their previous statement or argument. By mentioning different scientists, the authors are likely trying to illustrate or demonstrate the broader relevance or application of the concept or idea they have been discussing. It helps to reinforce their point by showing how it is supported by the work and research of various scientists in the field. Additionally, mentioning different scientists adds credibility to the authors’ claims and strengthens their overall argument.