Organisms must maintain their membranes at the proper level of fluidity to maintain the biological functions of the membranes. Use the physical and chemical properties of lipids and the fluid mosaic model of membranes to predict how each change described would influence the fluidity of a membrane. "Increase" means that the membrane would be moved toward a liquid-disordered state. "Decrease" means that the membrane would move toward the gel phase (or liquid-ordered state). Select all the changes that would decrease membrane fluidity. The percentage of 1-stearoyl, 2-palmitoleoyl phosphatidylethanolamine decreases and the percentage of 1-stearoyl, 2-arachidonoyl phosphatidylethanolamine increases. The percentage of 18:0 increases and the percentage of 18:1( \( \Delta 9 \) ) decreases. The temperature increases by \( 5{ }^{\circ} \mathrm{C} \). The percentage of 14:0 increases and the percentage of 16:0 decreases.