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: Negative
When converting from scientific notation to standard notation if the power of 10 is negative we move the decimal to the left. If it is positive we move the decimal to the right.
Example: 3*10^-3=.03 and 3*10^3=300
Plants use photosynthesis to make food
Need the descriptions in order to answer the question.
