The right option is; a hot solution with all of the solute dissolved
A supersaturated solution is a solution that contains more of the dissolved material (solute) than is needed to form a saturated solution at a given temperature. Factors that influence the solubility of solutes in a solution include; temperature, pressure and the chemical composition of substances involved.
It results from the composition of the cell membrane. The cell membrane consists of a phospholipid bilayer, which have hydrophilic heads and hydrophobic tails. Hope this helps! :)
The best way is to compare the DNA of the two species. The more nitrogenous bases and amino acids two species have in common, the more closely related they are.