Which formula represents the disaccharide that results from two monosaccharides joined together by dehydration synthesis?

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.

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun