Eight gain occurs when a person consumes too much/many a. calories b. fat c. carbohydrates d. protein select the best answer from the choices provided. a

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 effect does plate tectonics have an organic evolution

What is a codon and where is it found