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BiologyGrade 7en

🦁 Producers, Consumers, and Decomposers

This quiz explores the roles organisms play in ecosystems, focusing on how energy flows through food chains and food webs. You'll learn to classify organisms as producers, consumers, or decomposers based on their feeding strategies and energy sources. **What you'll learn:** - Define autotrophs (producers) and their role using photosynthesis - Classify heterotrophs as primary, secondary, or tertiary consumers - Explain how decomposers break down organic matter - Understand energy requirements and feeding strategies for each trophic level - Recognize chemosynthetic producers in specialized ecosystems

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Questions in this quiz

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  1. Question 1

    Which of the following organisms is classified as an autotroph?

  2. Question 2

    Photosynthesis is the process by which producers convert light energy into chemical energy stored in glucose.

  3. Question 3

    In a food chain, what is a primary consumer?

  4. Question 4

    Which trophic level would a hawk occupy if it eats snakes that eat mice that eat grass?

  5. Question 5

    Decomposers such as bacteria and fungi are heterotrophs because they must consume organic matter to survive.

  6. Question 6

    What is the primary role of decomposers in an ecosystem?

  7. Question 7

    A grasshopper eats grass, and a sparrow eats the grasshopper. What feeding role does the sparrow have?

  8. Question 8

    Heterotrophs include all consumers and decomposers, but not producers.

  9. Question 9

    In deep-sea hydrothermal vent ecosystems, which type of organism acts as the producer without relying on sunlight?

  10. Question 10

    Which characteristic is shared by all producers?

  11. Question 11

    A secondary consumer can only eat primary consumers and nothing else.

  12. Question 12

    Why is the amount of energy available to tertiary consumers less than the amount available to primary consumers?

  13. Question 13

    Which of the following best describes the relationship between a lion and the plants in its ecosystem?

  14. Question 14

    Bacteria are always decomposers and never act as producers in any ecosystem.

  15. Question 15

    In an energy pyramid, producers occupy the largest section at the base. Why is this the case?