I think the answer your looking for is Cells
William Martin and Michael Russell noted that hot iron sulfide rising from the below the ocean floor combined with the cooler ocean water to form to me like structures made of many compartments and that biological molecules combined in the compartments of these two minutes the walls of the compartments were thought to act is the first cell membranes.
Sorry if this is a little long (:
Hope this helps!
-Payshence
Answer:
The reason why, in cold temperatures and depending on the type of fatty acids, the phospholipid bilayer is less or more fluid is due to the different molecular interactions that occur between the tails of both types of fatty acids. the unsaturated - which determines the fluidity of the cell membrane.
Explanation:
<em>Temperature and saturation of fatty acid tails</em><em> are two factors that affect the </em><em>fluidity of the phospholipid bilayer</em><em> in cell membranes.</em>
Under normal conditions, low temperatures decrease the fluidity of the phospholipid bilayer, since it decreases the kinetic energy and increases the molecular interactions, which increases the stiffness.
However, unsaturated fatty acids - those that contain double bonds in their molecules - have a configuration that allows their tails to be more separated in their arrangement in the bilayer, which avoids the increase in molecular interactions and maintains to a certain extent the membrane fluidity, despite low temperatures.
Maintaining internal conditions within an organism is a characteristic of life known as homeostasis.
C. The strongest species survive