Searching for the food chain

The food chain demonstrates the relationship between predation and predation among organisms, and there are several food chains in an ecosystem. By identifying the correct food chain in an ecosystem, we can distinguish the role that animals play in the ecosystem.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

The scientific principle of the food chain is the embodiment of energy flow and material cycling in ecosystems. Producers convert solar energy into chemical energy through photosynthesis and store it in organic matter. Consumers obtain energy from producers or other consumers through feeding, but the energy gradually decreases during the transmission process, usually only 10% -20% of the energy can be transmitted from one trophic level to the next. This is because organisms consume a large amount of energy during life activities such as respiration. At the same time, substances circulate in the food chain, and the substances in organisms are returned to the environment by decomposers for producers to reuse, thereby maintaining the stability of the ecosystem.