What is a food chain beginning with detritus on which decomposers feed called?
(a) Grazing food chain
(b) Parasitic food chain
(c) Primary food chain
(d) Detritus food chain
This question was posed to me in an interview.
This question is from Ecosystem topic in chapter Ecosystem of Biology – Class 12
Correct answer is (d) Detritus food chain
To elaborate: A food chain beginning with detritus on which decomposers feed is known as the Detritus food chain (DFC). The organisms that are responsible for the break down complex organic matter (dead or decaying organisms) into inorganic substances are called decomposers (detritivores).