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.
The pygmy marmoset is known to be the smallest known species of monkey in the world. The pygmy marmoset averages at about 15cm tall, with a 20cm long tail behind it.