How did scientists modify the system to account for the diversity of prokaryotes

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

Apart of an ecosystem that can restrict the growth of a population is referred to as

Any sound above what db can cause hearing loss in human beings