To which category of organic compounds do enzymes belong?
a. lipids
b. proteins
c. nucleic acids
d. carbohydrates

What drives an advertising campaign?

Which process moves molecules and has these traits? -moves from high concentration to low concentration -moves from uneven distribution to even distribution -can occur when there is no membrane o o active transport in a cell diffusion osmosis o passive transport in a cell

The effect of a hormone on a target cell may be decreased by the presence of