Which characteristics are used to differentiate between the six kingdoms?

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 characteristic make legumes a good food source for food insecure populations

How will you manage your time to accomplish the necessary tasks both on the job and at home?