Density. Density is the measurement of how much matter is in a substance
The main purpose is protection. The lipid bilayer protects the cell from viruses and other threats to the cell. It also maintains homeostasis within the cell by monitoring the amount of substances the enter or exit the cell.
Answer: The GCF is 4
Explanation: The factors of 52 are 52, 26, 13, 4, 2, 1. The factors of 92 are 92, 46, 23, 4, 2, 1. So the GCF is 4.