Q28 / 200 · MHT CET - Medical 2026 (25 April Shift 1) · Biology

Which of the following are functional units of an ecosystem?
A. Productivity.
B. Spatial pattern.
C. Nutrient cycling.
D. Energy flow.
E. Decomposition.

  • A
    A, B, C and D only
  • Correct answer
    B
    A, C, D and E only
  • C
    A, B and C only
  • D
    A, B, C and E only

Solution

The components of an ecosystem are seen to function as a unit when the following aspects are considered:
1. Productivity
2. Decomposition
3. Energy flow
4. Nutrient cycling

Spatial pattern (such as stratification) is a structural feature of an ecosystem, not a functional unit.

Therefore, the functional units are Productivity (A), Nutrient cycling (C), Energy flow (D), and Decomposition (E).

Answer: A, C, D and E only

Hence, the correct answer is option: 'B'.

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