what membrane has more unsaturated bonds to the least hibern

what membrane has more unsaturated bonds, to the least: hibernating animal , fish in a pond in winter, cold resistant, hot springs bacteria

Solution

The order is :

Fish in a pond in winter > cold resistant > hibernating animal > hot springs bacteria

Reason: Fish in a pond in winter have highest unsaturated bonds in the membrane to maintain fluidity of the membrane and survival in cold conditions.This is followed by cold resistant that apply the same phenomenon to maintain membrane fluidity and function properly.Next comes hibernating animals that store food in form of unsaturated fats .Lastly comes hot springs that mostly contain high levels of saturated fats so as to maintain their shape at high temperatures.