Practice Test Sets (Total Questions: 100)

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Topic Practice: Organisms and Populations (Test - 2)

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About Organisms and Populations MCQ - Test 2

Master Organisms and Populations for NEET UG with ecological adaptations, population growth models, biotic interactions MCQs, and NCERT-based chapter notes.…

This Organisms and Populations 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.

organisms and populations NEET ecology population interactions mutualism competition adaptations age pyramids NEET questions biology notes

Sample Organisms and Populations Questions

  1. Statement I: Predation is nature's way of transferring energy across trophic levels and maintaining species diversity. Statement II: If predators are removed from an intertidal community, prey species diversity increases indefinitely. Which choice is correct?
    • A. Statement I is true, Statement II is false
    • B. Both statements are true
    • C. Statement I is false, Statement II is true
    • D. Both statements are false
  2. Read statements regarding Age Pyramids: 1. Age pyramids show the distribution of various age groups in a population. 2. Shape of the pyramid reflects growth status of the population (expanding, stable, or declining). 3. Post-reproductive individuals always outnumber pre-reproductive individuals in growing populations. Which of the above statements are CORRECT?
    • A. 1 and 2 only
    • B. 2 and 3 only
    • C. 1 and 3 only
    • D. 1, 2 and 3
  3. Consider statements regarding Co-evolution in Plants and Animals: Statement I: Plants have evolved various deterrents such as thorns and toxic chemicals to discourage herbivores. Statement II: Herbivores have evolved counter-adaptations (detoxification mechanisms) to feed on specific toxic plants. Which option is true?
    • A. Both statements are correct
    • B. Both statements are incorrect
    • C. Statement I is correct, II is incorrect
    • D. Statement I is incorrect, II is correct
  4. Statement I: The Mediterranean orchid Ophrys employs sexual deceit to ensure pollination. Statement II: One petal of Ophrys resembles a female bee in appearance and pheromone scent, inducing male bees to attempt pseudocopulation. Which choice is correct?
    • A. Both statements are correct
    • B. Both statements are incorrect
    • C. Statement I is correct, II is incorrect
    • D. Statement I is incorrect, II is correct
  5. Identify the CORRECT match of Population Interaction and its signs (+/-):
    • A. Mutualism: (+, +)
    • B. Competition: (+, -)
    • C. Commensalism: (-, -)
    • D. Amensalism: (+, 0)
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Frequently Asked Questions

How many questions are there in Organisms and Populations MCQ?

This page has 50 questions in Test - 2 out of 100 total questions on Organisms and Populations.

Are answers and explanations provided for Organisms and Populations 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.

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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.