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PU M Entry Biology Ecosystem MCQs Test 2
PU M Quiz (Biology)
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PU M Entry Biology Ecosystem MCQs Test 2

Free preview: First 4 questions are free. After that (or after 3 minutes, whichever comes first) you'll need to unlock the full quiz.

Practice PU M 2026 Entry Test Biology MCQs from Ecosystem. Get instant results with Explanation.

Practice Quiz 2 for "Ecosystem" (Biology). Total 25 MCQs available, split into 3 quizzes. Test your understanding of core concepts. Mastering these concepts is essential for securing a high percentile in PU M.

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Punjab University Entry Test PU-M

Conducting Body: University of The Punjab (PU)
Frequency: Bi-Annual | Time: 80 Minutes
Negative Marking: No

⚡ Test Pattern (Total: 100 MCQs):

Merit Formula: Merit Formula: Intermediat 50% Matric 25% PU M Entry Test 25%

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1. How does a food web affect ecosystem stability?
2. What does a food web show?
3. What happens when a top predator is removed from a food web?
4. Which ecological pyramid shows the number of individuals?
5. Which ecological pyramid shows the amount of living matter?
6. Which ecological pyramid is always upright?
7. How does the number of organisms change in a pyramid of numbers?
8. How does energy flow through an ecosystem?
9. How does matter cycle through an ecosystem?
10. What cycle involves nitrogen fixation and nitrification?

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