An ecosystem is a community of living organisms interacting with each other and their physical environment. This includes plants, animals, and microorganisms living in a specific area. Ecosystems can vary in size and complexity, from a small pond to a vast forest.
The movement of matter involves the cycling of nutrients like carbon, nitrogen, and phosphorus through living organisms and the environment. Energy flow involves the transfer of energy from one organism to another through food chains or webs, with energy decreasing as it moves up the trophic levels. While matter is recycled within the ecosystem, energy flows in one direction and eventually dissipates as heat.
sharks play important role in the ecosystem and without them our ocean would be toxic and filled with sick and dying fish. Sharks are at the top of the food chain so without them the whole ocean ecosystem would fall apart