Ecosystems Practice Questions
20 free Ecosystems practice questions for the Botany, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.
Questions
20 questions
All Ecosystems questions
- Q1. Which of the following terms describes the total dry weight of all living organic matter in a specific trophic level or ecosystem?
- Q2. In an energy pyramid, what percentage of energy is typically transferred from one trophic level to the next higher level?
- Q3. Which process in the nitrogen cycle involves the conversion of atmospheric nitrogen (N2) into ammonia (NH3) by specialized bacteria?
- Q4. What is the primary difference between a food chain and a food web?
- Q5. Which of the following organisms is always found at the first trophic level of an ecosystem?
- Q6. In the phosphorus cycle, what is the primary reservoir for phosphorus?
- Q7. What occurs during the process of 'biological magnification' (biomagnification)?
- Q8. Which type of ecological succession occurs on a surface where no soil previously existed, such as a new volcanic island?
- Q9. The relationship between a remora fish and a shark, where the remora gets a free ride and scraps of food while the shark is unaffected, is an example of:
- Q10. Which ecosystem has the highest Net Primary Productivity (NPP) per square meter?
- Q11. What is the term for a species that has a disproportionately large effect on its natural environment relative to its abundance?
- Q12. In the carbon cycle, which process removes carbon dioxide from the atmosphere?
- Q13. What describes the 'niche' of an organism within an ecosystem?
- Q14. Which biome is characterized by permafrost, extremely low temperatures, and little precipitation?
- Q15. What is the primary role of fungi and bacteria in an ecosystem's nutrient cycle?
- Q16. An 'ectoparasite' is an organism that lives on which part of its host?
- Q17. The Competitive Exclusion Principle states that:
- Q18. Which of the following is an abiotic factor that could limit the size of a population?
- Q19. What happens during the process of 'transpiration'?
- Q20. In a pyramid of numbers, what does each level represent?