Practice Test Sets (Total Questions: 100)

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Topic Practice: Ecosystem (Test - 1)

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About Ecosystem MCQ

Conquer Ecosystem ecology for NEET UG with practice MCQs, energy flow laws, ecological pyramids, nutrient cycles, and high-yield exam notes.

This Ecosystem MCQ practice set is designed for students preparing for school exams and competitive exams. It contains 100 multiple choice questions divided into 2 test sets of up to 50 questions each. Every question has four options, and after answering you can see the correct option, a detailed explanation and how other users answered.

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Sample Ecosystem Questions

  1. If producers (T1 level) in a grassland ecosystem fix 50,000 Joules of solar energy into chemical energy (GPP), how much energy (in Joules) will be available to the Tertiary Carnivore (T4 level) according to Lindeman's 10% Energy Transfer Law?
    • A. 500 Joules
    • B. 50 Joules
    • C. 5 Joules
    • D. 0.5 Joules
  2. Gross Primary Productivity (GPP) of an ecosystem is $3500\text{ kcal/m}^2/ ext{yr}$, and respiration losses (R) amount to $1400\text{ kcal/m}^2/ ext{yr}$. What is the Net Primary Productivity (NPP)?
    • A. $4900\text{ kcal/m}^2/ ext{yr}$
    • B. $2100\text{ kcal/m}^2/ ext{yr}$
    • C. $3500\text{ kcal/m}^2/ ext{yr}$
    • D. $1400\text{ kcal/m}^2/ ext{yr}$
  3. Robert Costanza and his colleagues estimated the average price tag of global ecosystem services to be US $33 trillion per year. What percentage of this total estimated cost is attributed to soil formation?
    • A. About 10%
    • B. About 30%
    • C. About 50%
    • D. About 70%
  4. During decomposition, which step involves water-soluble inorganic nutrients going down into the soil horizon and getting precipitated as unavailable salts?
    • A. Fragmentation
    • B. Leaching
    • C. Catabolism
    • D. Humification
  5. Humification during decomposition leads to the accumulation of humus, which is a dark-colored amorphous substance. Humus is characterized by being:
    • A. Highly susceptible to microbial action and rapidly degraded
    • B. Highly resistant to microbial action and undergoes extremely slow decomposition
    • C. Completely soluble in water
    • D. A monomer of glucose units
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Frequently Asked Questions

How many questions are there in Ecosystem MCQ?

This page has 50 questions in Test - 1 out of 100 total questions on Ecosystem.

Are answers and explanations provided for Ecosystem MCQs?

Yes. After you select an option, the correct answer is shown along with an explanation and the percentage of users who chose each option.

How can I practice Ecosystem MCQs online?

Click the Start button on this page, answer the questions one by one, and review your score. You can resume anytime and track progress from your dashboard.