Can yall please help me with my bio

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

Based on her survey, which advertising mediums will work best to publicize leslie's in-store specials?

Sequence how oxygen accumulated in the atmosphere and the effect it had on life by completing the flowchart