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.
Just as impressive but at the other end of the size spectrum, the tiniest snakes (several Leptotyphlops species from the Lesser Antilles) are among the smallest of any terrestrial vertebrate. In both cases of extreme size, snakes have successfully pushed anatomical and physiological boundaries.