Final answer:
Energy in an ecosystem is transferred through the food chain, recycled and reused, and eventually lost as heat.
Step-by-step explanation:
Energy in an ecosystem is transferred through the food chain, recycled and reused, and eventually lost as heat. It is not limited to flowing only one way and is part of an open system. Energy enters ecosystems from the sun or inorganic chemicals and flows through producers (plants) to consumers (herbivores and carnivores) in a food chain.