This is a multicellular algae called volvox. The cells that make up volvox can live alone, as single-celled algae. How is a multicellular algae like this one different from each single cell that makes up its body? A) Only multicellular volvox can reproduce. B) Volvox cells must be able to work together or cooperate. C) Volvox cells are much more complex than the single-celled algae. D) The single-celled algae has different parts than the volvox within.