Which of the following best explains what would happen if there were no primary consumers in an ecosystem? (1 point)

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’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

Anybody who knows ap biology, can you friend or message me