Practice Exercises - 12.7 | 12. Ecosystem | CBSE Grade-12 Biology
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12.7 - Exercises

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What type of organisms are decomposers?

💡 Hint: Think about the organisms that recycle nutrients in nature.

Question 2 Easy

What is the producer level in a food chain?

💡 Hint: Consider which organisms create their own food.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What do we call the living factors in an ecosystem?

Abiotic
Biotic
Nutrient

💡 Hint: Reflect on the term for living organisms.

Question 2

Is primary productivity important for secondary consumers?

True
False

💡 Hint: Think about energy flow in a food chain.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Considering a food web in a forest ecosystem, analyze how a decrease in primary productivity would impact secondary consumers.

💡 Hint: Focus on the interdependence in food chains.

Challenge 2 Hard

Discuss how climate change might influence decomposition rates in various ecosystems.

💡 Hint: Consider how climate effects are felt in ecosystem functions.

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