Organisms can adapt to cold temperatures by increasing the amount of unsaturated fatty acids in their membranes, which maintain fluidity as temperatures decrease.

a. true
b. false

Answer is A. True.

Explanation:

Organisms have developed an adaptive property which will enable them to adapt to cold temperature, through increase in their membranes fatty acid. This process allows them to keep the liquid-crystalline sate of their cell membranes at a cold temperature. This process is known as the homeoviscous adaptation.

This process is done by organisms especially the mammals to maintain functional membrane phenotypes.