The lipid bilayer molecules do what for the cell ? a. cells recognize each other b. allow food molecules into the cell c. prevent the passage of certain molecules into the cell d. organize amino acids for protein synthesis

Abeaker of water was heated and then placed on a bench in the laboratory. the water cooled until it was the same temperature as the air in the laboratory. which of these explains the mechanism by which the water cooled? a. heat energy was transferred from the water to the air. b. water molecules from the water formed warm water currents. c. the water molecules absorbed energy from the molecules in the air. d. the water released radiation until it contained no heat energy.