The process whereby nitrogen is brought into organic molecules is called

a. nitrification

b. denitrification

c. nitrogen fixation

d. nitrogen cycling

Green plants function as producers in a grazing food chain, which are then consumed by herbivores who eat on them. Carnivores eat herbivores, and carnivores eat herbivores. Green plants are autotrophs, indicating they can produce their own nutrition through photosynthesis.

A detrital food chain is made up of dead organic debris that microbes eat. Microorganisms aid in the breakdown of complex natural materials, which is then returned to the soil. The detritus food web is essential to the survival of all ecosystems.

Many food chains can coexist in the same ecosystem, just as multiple tiers of creatures can coexist. The detritus food web is required in a grassy food chain to break down dead organic materials from inorganic to natural form so that the plants can absorb the nutrients and use them in their metabolic process. The same may be said for the detritus food chain, which requires dead organic materials, which is given by dead grasses and bushes. As a result, each service is required to complete the food chain.