In response to seasonal changes in temperature, many organisms must alter the composition of their plasma membranes to maintain the proper degree of fluidity. as summer turns to fall and eventually into winter, which of the following would you predict you would observe in the plasma membranes of organisms that are unable to regulate their body temperature? a. a decrease in phospholipid fatty acid side chain saturation and a decrease in cholesterolb. a decrease in phospholipid fatty acid side chain saturation and an increase in cholesterolc. an increase in phospholipid fatty acid side chain saturation and an increase in cholesterold. an increase in phospholipid fatty acid side chain saturation and a decrease in cholesterol