Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Ecosystem

Question:

Which option is incorrect regarding the comparison between the Grazing Food Chain (GFC) and Detritus Chain?

Options:

GFC begins with producers at the first trophic level.

GFC binds up inorganic nutrients, while the detritus chain helps in releasing inorganic nutrients to the cycling pool.

Both (a) and (b)

Detritus chain accounts for less energy flow than the grazing food chain.

 

Correct Answer:

Detritus chain accounts for less energy flow than the grazing food chain.

 

Explanation:

The incorrect option is (d) Detritus chain accounts for less energy flow than the grazing food chain.

Detritus chains, also known as detrital food chains, play a vital role in ecosystem functioning by decomposing organic matter and recycling nutrients. They are responsible for the breakdown of dead organic material, such as leaf litter and dead organisms. Detritus chains contribute significantly to nutrient cycling and the release of inorganic nutrients into the ecosystem.

In contrast, grazing food chains (GFC) involve the transfer of energy and nutrients from producers (plants) to herbivores (primary consumers), and further to secondary and tertiary consumers. GFCs primarily involve the direct consumption of living plant material by herbivores.

Therefore, option (d) is incorrect because detritus chains are equally important for energy flow and nutrient cycling in ecosystems, and they do not account for less energy flow than grazing food chains.