Two atoms of the same substance with different numbers of neutrons are called what

a) quarks
b)isotopes
c)protons
d)ions

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

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a

How is the carbon cycle related to global warming ?