Which is a career that would use micro organisms to remove pollutants from water

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

Write a paragraph at least 5 sentences “why all vaccinations should be mandatory”

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?