Talk time im bored joinn anybody

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.

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity