We have found slender man​

What do all macromolecules have in common with each other? oa. they all are formed from the same elements. ob. they all have major roles in cell membranesoc. they all act as catalysts in the body. od. they all have peptide bonds between carbon atoms.

Monitor and apply fix up stratorgies

Are the earth's ocean floor and continents the same age geologically? why or why not?