Ecosystem - Structure and Function, Energy Flow

Grade 12 Biology — Ecosystem - Structure and Function, Energy Flow: 25 practice questions with instant scoring and explanations.

1. What is an ecosystem?
2. What are the biotic components of an ecosystem?
3. What are the abiotic components of an ecosystem?
4. What is a producer in an ecosystem?
5. What is a consumer in an ecosystem?
6. What is a primary consumer?
7. What is a secondary consumer?
8. What is a decomposer in an ecosystem?
9. Which of the following is an example of a decomposer?
10. What is energy flow in an ecosystem?
11. What is the first law of thermodynamics in relation to ecosystems?
12. What percentage of energy is transferred from one trophic level to the next?
13. Why is energy lost between trophic levels?
14. What is gross primary productivity (GPP)?
15. What is net primary productivity (NPP)?
16. What is secondary productivity?
17. How many trophic levels can typically be supported in an ecosystem?
18. What is an omnivore in an ecosystem?
19. What is ecosystem function?
20. What is standing crop or standing biomass?
21. How does energy availability limit the number of trophic levels?
22. What is the role of photosynthesis in energy flow?
23. What is respiration in relation to energy flow?
24. What would be the effect of removing all decomposers from an ecosystem?
25. How is energy lost from an ecosystem?