According to Natural Selection, those characteristics that best adapt a species to will be passed on to future generations.
eat
live the longest
reproduce
defeat their enemies

What is the powerhouse of the cell?

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.

What volume of a 0.25 m solution can be made using 0.55 moles of ca(oh)2