Neurons pumping out the cells of potassium into the cells meaning energy is being transfer
the killer whales would die of starvation as they would have no source of food, and the cod would become overpopulated. The krill would be scarce, and the algae would over grow.
I hope this helps
Rock #3 because it’s one of the bigger ones and it is also a rectangle shape making it more difficult for it to just roll on down