In which ecosystem, a large fraction of energy flows more through DFC than through GFC?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Forest Ecosystem
Option (4) Forest Ecosystem — Correct. In terrestrial ecosystems such as forests, more energy flows through the DFC.
NCERT Extract:
Energy Flow – “In an aquatic ecosystem, GFC is the major conduit for energy flow. As against this, in a terrestrial ecosystem, a much larger fraction of energy flows through the detritus food chain than through the GFC. Detritus food chain may be connected with the grazing food chain at some levels: some of the organisms of DFC are prey to the GFC animals, and in a natural ecosystem, some animals like cockroaches, crows, etc., are omnivores.”