Practice question

MCQ

Question

Identify the CORRECT statements with respect to functioning of ecosystem. P. A food chain is a series of organisms, each one feeding on the organism succeeding it Q. Food web presents a complete picture of the feeding relationships in any given ecosystem R. In ecosystem, energy flows in unidirectional way, whereas nutrients flow in cyclic fashion S. In biogeochemical cycles, nutrients do not alternate between organisms and environment

Options

Choose one · Correct answer highlighted

P. Q P, R R, S Q, R Correct

Explanation

Evidence for DNA replication fidelity indicates polymerase proofreading and origin firing ensure accurate duplication. Option D aligns with this, as it matches high-fidelity synthesis mechanisms, reflecting standard interpretations in molecular biology.

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