Do you mean Lipid Bilayer?
The lipid no later is a thin polar membrane made up of two layers of lipid molecules. These membranes are like flat sheets that form a continuous barrier around all cells.
Hope this helps
Chloroplast has evolved from photosynthetic bacteria
<span>In antarctica, populations of penguins are generally spread evenly across breeding grounds. </span>A uniform population distribution<span> is displayed by the penguins.</span>