HELP ASAP!! I WILL MAKE YOU BRAINLIEST, EXTRA DETAIL! There are 4 bio-macromolecules: Carbs, Lipids, Proteins, & Nucleic Acids. What are their monomers?

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.

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

Describe the relationship between isotonic solutions, equilibrium, and water movement into and out of a cell.