The answer to this question would be false.
The solute is a substance that was dissolved by the solvent. The amount of solute that can be dissolved is called solubility. The amount of solute mostly small and if it solubility too high it will be precipitated.
There are no rules state that solute should always be the greatest amount.
Due to divergent evolution, some species may have similar anatomical structures with the same purposes. The species while not exactly similar are close enough to allow the interbreeding of the two, such as the horse and mule