Organs.
if you're having trouble remembering them they are
cell
tissue
organ
organ systems
organism
Heterotrophic. Only plants have cell walls, so that goes to phytoplankton, andwhales have thousands of cells, so unicellular goes to plankton again. Mammals aren't prokaryotic, so we're left with heterotrophic.
O1:2:1 because they are carbon, hydrogen and oxygen
Answer:
My Guess Is C if im wrong sorry
Explanation:
Just thinking logicaly
I think its 4 hope that helped
