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Plasma Membrane Question?

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?

Answer: ______ in phospholipid fatty acid side chain saturation and ______ in cholesterol

A. Decrease; Increase
B. Increase; Increase
C. Increase; Decrease
D. Decrease; Decrease

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