12th Biology Ecosystem Quiz for 2026 exam

12th Biology Ecosystem Quiz for 2026 exam

Are you student of 12th Biology grade or preparing any competitive exam based on 12th standard? If yes! Participate in 12th Biology Ecosystem Quiz for Check knowledge with instant result. Subscribe our YouTube Channel youtube.com/@QuizRanker and Study MCQ 12th Biology Quiz with question answer for better marks.

Ecosystem MCQ Test Quiz

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Time: 10 Minutes for 10 Question.

12th Biology: Ecosystem

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1. Common detritivores in our ecosystem are

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2. In aquatic ecosystems, the limiting factor for productivity is

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3. In gaseous cycles, the reservoir is

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4. Litter is

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5. The decomposed organic matter in soil is called

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6. The major reservoir of carbon on earth is

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7. Humification leads to formation of

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8. Primary productivity depends on

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9. In an ecosystem dominated by trees, the pyramid of numbers is

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10. The most abundant gas released during decomposition is

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Score card Ecosystem Mock Test

Pos.NameScorePoints
1Jayamala T50 %5

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Pankaj Karn

I’m a dedicated biology teacher specializing in online education and academic writing. Currently, I contribute to QuizRanker.in, where I create engaging and informative biology content. With an MSc degree in hand, I’m passionate about making complex biological concepts accessible and exciting for students everywhere.

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Thamaya Hareni

I’m glad that I can win this quiz competition

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