Class 12 · Organisms and Populations

Ecology: Study of Organism Interactions — NEET Biology

✅ Asked in NEET 2025
📖 NCERT Source

You have already learnt in previous classes that Ecology is a subject which studies the interactions among organisms and between the organism and its physical (abiotic) environment.

NCERT Biology · Class 12 · Chapter 11 · Paragraph 5
How NTA Uses This Concept

Ecology fundamentally studies interactions between organisms (biotic) and their physical environment (abiotic). NTA tests whether students understand that ecology encompasses both biotic interactions (predation, competition, symbiosis) and abiotic factors (temperature, light, water). Students commonly mistake ecology as only studying individual organisms or only focusing on environmental factors, missing the interaction component. Remember: Ecology = Organism-to-organism interactions + Organism-to-environment interactions. This foundation is critical for NEET as all subsequent concepts (population dynamics, community interactions, ecosystem functions) build on understanding these relationships clearly.

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QuestionNEET 2025

Which one of the following pairs is a biotic component of the ecosystem?

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