Official NEET-UG 2026 unit 'Ecology And Environment'. Weightage shown is the NEET pattern average (90 Biology questions spread across 32 chapters), not a paper-by-paper count. 444 original practice questions with explanations in the bank.
• Organisms and environmentPopulation interactions-mutualism, competition, predation, parasitism
Population attributes-growth, birth rate and death rate, age distribution. • Ecosystem: Patterns, components; productivity and decomposition
Energy flow
Pyramids of number, biomass, energy • Biodiversity and its conservation: Concept of Biodiversity
Patterns of Biodiversity
Importance of Biodiversity
Loss of Biodiversity
Biodiversity conservation
• Organisms and environmentPopulation interactions-mutualism, competition, predation, parasitism
10 minutes. Bloom-level questions. Know exactly where you stand.
On average about 3 questions per NEET paper come from Organisms and Populations, out of 90 in Biology — roughly 3% of the Biology section.
Organisms and Populations is rated Medium difficulty for NEET. Official NEET-UG 2026 unit 'Ecology And Environment'. Weightage shown is the NEET pattern average (90 Biology questions spread across 32 chapters), not a paper-by-paper count. 444 original practice questions with explanations in the bank.
Organisms and Populations maps to NCERT Biology XII Ch 11 in the NCERT Biology textbook.
• Organisms and environmentPopulation interactions-mutualism, competition, predation, parasitism