If i were a ghost then you'd be my boo ;)

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.

Brainliest ! which would require more force to move or slow down between a bowling ball and a soccer ball? explain why?

Has regulatory areas for thirst, hunger, body temperature, water balance, and blood pressure