If an organism has a vestigial structure, that structure likely once had a function in a(n)

What is the name of the two satelites on mars

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

At which location in earth’s interior does the top density continue to increase as thickness decreases?