Final answer:
A detrital food web is a type of food web in which decomposers are the primary consumers, and it is associated with grazing food webs within the same ecosystem.
Step-by-step explanation:
A detrital food web is a type of food web in which the primary consumers consist of decomposers. It is often associated with grazing food webs within the same ecosystem. Decomposers, including bacteria, fungi, and invertebrate animals, feed on decaying organic matter and recycle it back into the ecosystem. In a forest, for example, the detrital food web occurs as the wastes of animals like deer, raccoons, and squirrels accumulate on the forest floor.