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Ecosystem Structure & Function (NCERT) - Free MCQ Practice Test with solutions,


MCQ Practice Test & Solutions: Test: Ecosystem Structure & Function (NCERT) (5 Questions)

You can prepare effectively for NEET Biology Class 12 with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Ecosystem Structure & Function (NCERT)". These 5 questions have been designed by the experts with the latest curriculum of NEET 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 5 minutes
  • - Number of Questions: 5

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Test: Ecosystem Structure & Function (NCERT) - Question 1

What term is used to describe the vertical distribution of different species occupying various levels in an ecosystem?

Detailed Solution: Question 1

Vertical distribution of different species occupying different levels is called stratification. For example, trees occupy top vertical strata or layer of a forest, shrubs the second and herbs and grasses occupy the bottom layers.

Test: Ecosystem Structure & Function (NCERT) - Question 2

What describes the movement of energy in the pond ecosystem?

Detailed Solution: Question 2

In the pond ecosystem, there is a unidirectional movement of energy towards higher trophic levels, starting from autotrophs to heterotrophs, and energy is eventually dissipated as heat.

Test: Ecosystem Structure & Function (NCERT) - Question 3

Which group of organisms in the pond ecosystem is primarily responsible for the decomposition of dead matter?

Detailed Solution: Question 3

Fungi and bacteria, along with flagellates found at the bottom of the pond, are primarily responsible for the decomposition and mineralisation of dead organic matter, releasing nutrients back into the ecosystem for reuse by autotrophs.

Test: Ecosystem Structure & Function (NCERT) - Question 4

What is the primary function of the solar input in the pond ecosystem?

Detailed Solution: Question 4

The primary function of the solar input in the pond ecosystem is to drive the photosynthetic activity of autotrophs such as phytoplankton and certain algae, enabling them to convert inorganic substances into organic material, which is essential for the functioning of the ecosystem.

Test: Ecosystem Structure & Function (NCERT) - Question 5

What role do autotrophs play in an aquatic ecosystem such as a pond?

Detailed Solution: Question 5

In an aquatic ecosystem like a pond, autotrophs such as phytoplankton and certain algae use the radiant energy from the sun to convert inorganic substances into organic material, supporting the base of the food web.

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