Home Biology Ecosystem Statement Based Questions Read the following statements carefully. (i)…
Biology Ecosystem Statement Based Questions Single Correct MCQ
Published on: August 14, 2026

Read the following statements carefully.

(i) Primary succession is a very slow process taking thousands of years for the climax to be reached.

(ii) Energy at a higher trophic level is always more than at a , lower level.

(iii) Bacterial and fungal enzymes degrade detritus into simpler inorganic substances. This process is called fragmentation,

(iv) All succession whether taking place in water or on land, proceeds to a similar climax community — the mesic.

Which of the two above statements are, correct?

A
(i) & (ii)
B
(ii) & (iii)
C
(i) & (iv)
D
(iii) & (iv).

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The correct answer is:
C

(i) is correct because primary succession is a slow process that may take thousands of years.

(iv) is considered correct in standard ecology texts, as succession tends toward a stable mesic climax community.

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