This map shows the extent of hypoxia in Long Island Sound from 1991 through 2009. (The units are in milligrams per liter, or mg/L.) What can you conclude from this map?

We want most cells to be even in and out which is called

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.

The deserts of the sahara and australia are associated with