Botany-(general)

NEET Botany (general) MCQ Question

Type: MCQ-conceptual-Hard-Class 12

Which of the following statements regarding ecosystems and their components are correct?

A

Ecosystems can be categorized as terrestrial or aquatic based on their size.

B

The rate of decomposition is faster in detritus rich in lignin and chitin.

C

Humus serves as a reservoir of nutrients and is resistant to microbial action.

D

Ecological pyramids represent the relationship among organisms at different trophic levels.

Correct Answer

Option C

Detailed Explanation

Statement A is incorrect as ecosystems are categorized based on habitat type, not size. Statement B is wrong because decomposition is slower in lignin and chitin-rich detritus. Statement C is correct as humus is indeed a nutrient reservoir and resistant to microbial action. Statement D, while true, is not the focus of the question regarding specific ecosystem components.

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