Algae is eaten by small fish. The small fish is eaten by a larger fish. The large fish is eaten by a shark. What trophic level is the shark?​

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.

Apart of an ecosystem that can restrict the growth of a population is referred to as

Which best describes what you will do in the reaching your academic potential course?