Which word does not belong and why?
Beaches, dunes, river valleys, submarine canyons

About __ of the mass of the cell is water

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.

Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? a) catalysis b) metabolism c) anabolism d) dehydration e) catabolism