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.
A genus is the classification group containing related species.  Going from largest on down,: kingdom, phylum, class, order, family,  genus and species. genus is the classification group containing related species.  Going from largest on down,: kingdom, phylum, class, order, family,  genus and species.