A popliteal cyst, also known as a Baker's cyst, is a fluid-filled swelling that causes a lump at the back of the knee.
the smallest category is species but from largest to smallest it will be: kingdom Phylum class order family genus and species and you can come up with another word for it to hâ¦elp you with it. so yeh there you go.
Correct answer is Species is the lowest taxonomic rank, rank is the level of an organism or groups of organisms in taxonomy hierarchy. Species is basic unit of biological classification which contains the fewest number of organisms and this makes it most specific.Species which have the same ancestors are placed in one rank called genus. Taxonomic ranks in order (from the biggest to the smallest) :). -Domain.pecies is basic unit of biological classification which contains the fewest number of organisms and this makes it most specific. Species which have the same ancestors are placed in one rank called genus.