Cell membranes are often called a "fluid mosaic" of lipids and proteins. what is the role of the cell membrane structures?

Pepsin is an enzyme in the stomach that breaks polypeptides into amino acids. pepsin functions best at a ph of around 1.5. what would be the most likely result if the ph of the stomach were increased to 5

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

Acommon kind of mechanical weathering is called