A heterogeneous mixture composes of non- uniform components, so the concrete would be the answer, because you can tell the components from one another.
Herbivores: Bubbles (yellow tang), Bruce (turtle), Dory.
Carnivores: The three sharks. Chum (maiko shark), Bruce (great white shark), Anchor (Hammerhead shark).
I think the answer would be 52cm:24cm ratio but don't take my word for it
I believe it's lactic acid and energy.