Explain how evolution of sickle cell anemia occurred in the human population. Use the words natural selection, adaptation, and evolution in your response.

The sickle-cell allele is maintained through natural selection because of something called the heterozygote advantage.

Explanation:

Hope it helps

the endomembrane system i think

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.