The 4 main points I’m not sure what u mean but if u refrase it
Answer:
Scientists agree that there's oxygen from ocean plants in every breath we take. Most of this oxygen comes from tiny ocean plants – called phytoplankton – that live near the water's surface and drift with the currents. Like all plants, they photosynthesize – that is, they use sunlight and carbon dioxide to make food.
Explanation:
The role of the top predator is to maintain the balance between the population of secondary consumers, primary consumers and the producers. The removal of the sea otters, a top predator will lead to the increase in the number of the secondary consumers that include the creatures like the crabs, frogs, fishes, etc. These creatures are also eaten by the gulls and the eagles. This will lead to increase in the number of the gulls and the eagles as they have more food for themselves. The removal of sea otter decreases the competition over food with the gulls and the eagles. This is an indirect benefit to them.