The lysosome and vacuole are similar to the excretory system. They both store waste and removes waste. The nucleus is similar to the nervous system. The both provide instructions for the functioning of the system. Summary. Cells are highly organized which allows for specialization of each cellular process.
I think the answer is D as A would mean that the abyssopelagic organisms would be best adapted and therefore a large biomass which isn't the case and it isn't B nor C so it must be D