The ultimate source of energy for starting the food chain is: 1glucose 2starch 3atp 4in cells solar

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 how the political influence of african americans leaders became weaker.

How can you tell the difference between rough er from smooth er?