A drought is a period of unusually low rainfall. A farmer notices that well on the farm stops providing water during a drought. A nearby lake also has less water in it than usual. Write a
couple of sentences that explains what has happened to the water table in the area to cause these results.

What are the probable phenotypes of their offspring

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 body is protected against harmful flu viruses by