Is looking at the ear a sign of something sexual?

Is snow a type of precipitation? explain why or why not.

This is the amino acid cysteine. circle the amine group, put a box aroundthe carboxylic acid group and use a different colored pencil/pen to circle the sidechain (r group). h o | ||nh2— c- c-oh | ch2 | sh

Stephen is a student who wants to test his knowledge of medical terminology. which option could he use?