Ecosystem is the interaction of all living and nonliving things. Now the question is how energy flows across it and from where it comes because we know that all living organisms need energy to live and to survive. The ultimate source of energy is the sun.
This energy is first absorbed by the green color pigment called chlorophyll of the green plant. And by the process of photosynthesis that energy is used in the formation of food. Some of it is utilized by the plants themselves and some go to the animals called herbivores after eating green plants.
Through the process of respiration food got by herbivores is broken down and during this break down energy is released which is utilized by them for various activities of life. Herbivores are then eaten by flesh eating animals called carnivores and in this way some of the energy goes to carnivores.
Through the process of respiration food got by herbivores is broken down and during this break down energy is released which is utilized by them for various activities of life. Herbivores are then eaten by flesh eating animals called carnivores and in this way some of the energy goes to carnivores.
There is third category of animals called top-carnivores. Top carnivores gain energy by eating carnivores. And at last the dead bodies of the top carnivore are eaten by fungi and bacteria, so in this way energy is again released to to eco system. During this flow of energy at every step the amount of energy decreases because some of the energy is wasted as heat.
