Humans use yeast every day. what is yeast, and what are some common uses of yeast?

Here's one way to follow the scientific method. place the missing steps in the correct position in the process.

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

Most of the carbon on earth is stored in the form of