A food web is a network of interconnected food chains. It shows the multiple feeding relationships among organisms, where each organism is usually eaten by two or more other kinds, and in turn, eats several other organisms. Unlike a straight ...

Food chains are generally limited to three or four trophic levels because of the significant loss of energy at each step. With each transfer, less usable energy remains, making it unsustainable for more levels.

On average, only about 10% of the energy from one trophic level is transferred to the next level. Most of the energy is lost as heat, used up in digestion, or expended in other metabolic activities.

Autotrophs, or producers, play a crucial role in capturing solar energy and converting it into chemical energy via photosynthesis. This energy is then made available to other organisms (heterotrophs or consumers) in the ecosystem.

A garden is a simple example of an ecosystem. It consists of biotic components like grasses, trees, flowers (rose, jasmine, sunflower), frogs, insects, and birds, as well as abiotic components like soil, temperature, and light.