OMG THEY'RE HERE! AND THEY'RE COMING! EVERYONE RUN D;

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.

Explain the process that creates the heat of the sun?

Which diagram best represents the chromosomes that would be found in a two new skin cells produced as a result of this process?