NEET Biology question

Which one of the following processes during decomposition is correctly described? [NEET 2013]

(A)Catabolism – Last step in the decomposition under fully anaerobic condition
(B)Leaching – Water-soluble inorganic nutrients rise to the top
(C)Fragmentation – Carried out by organisms such as earthwormCorrect
(D)Humification – Leads to the accumulation of a dark coloured substance humus which undergoes microbial action at a very fast rate

Answer: (C)

Solution

Fragmentation is the breakdown of detritus into smaller particles by detritivores such as earthworms and termites; catabolism is carried out by microbial extracellular enzymes (not solely anaerobic), leaching moves

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Question ID VK-126883