This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 30 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 30 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The islands of Hawaii were formed by A) Primary succession. B) Secondary succession. Show Answer Correct Answer: A) Primary succession. 2. How long will the glass bottle decompose? A) 125years. B) 500years. C) 2500years. D) 4000years. Show Answer Correct Answer: D) 4000years. 3. What is the fourth level of a food chain? A) Producer. B) Primary consumer. C) Secondary consumer. D) Tertiary consumer. Show Answer Correct Answer: D) Tertiary consumer. 4. What is the difference between commensalism and parasitism? A) Both animals benefit from a relationship. B) Commensalism is when one animal is unharmed and parasitism is when one animal IS harmed. C) The difference in commensalism is it involves four animals that benefit and two that are unharmed. D) None of above. Show Answer Correct Answer: B) Commensalism is when one animal is unharmed and parasitism is when one animal IS harmed. 5. These organisms return nutrients to the soil by consuming wastes and dead organisms A) Decomposers. B) Producers. C) Consumers. D) Omnivore. Show Answer Correct Answer: A) Decomposers. 6. Members of the same species living in a defined area A) Ecosystem. B) Community. C) Biodiversity. D) Population. Show Answer Correct Answer: D) Population. 7. Limiting factor that relies on the number of organisms in a given area A) Density-dependent. B) Density-independent. C) Biotic potential. D) Carrying capacity. Show Answer Correct Answer: A) Density-dependent. 8. All the non-living things in an environment A) Biotic. B) Biome. C) Abiotic. D) Biosphere. Show Answer Correct Answer: C) Abiotic. 9. In a food web below: A) All the energy contained within the organisms in the web comes from the sun. B) The hawk is not the top predator. C) Energy is not transferred from organism to organism in this food web. D) Rabbit is primary producer. Show Answer Correct Answer: A) All the energy contained within the organisms in the web comes from the sun. 10. The approximate amount of energy that is transferred between each trophic level is: A) 10%. B) 0.1%. C) 90%. D) It totally depends on the ecosystem. Show Answer Correct Answer: A) 10%. 11. Occurs when 2 or more organism use the same resource A) Competition. B) Mutualism. C) Commensalism. D) Parasitism. Show Answer Correct Answer: A) Competition. 12. How do producers obtain energy? A) They conduct photosynthesis. B) They consume plants. C) They consume primary consumers. D) They consume secondary consumers. Show Answer Correct Answer: A) They conduct photosynthesis. 13. What is it called when a population growth levels off when the environment has reached the maximum number of organisms that can be supported in a given environment? A) Logistic Growth. B) Exponential growth. C) Carrying Capacity, k. D) Limiting factors. Show Answer Correct Answer: C) Carrying Capacity, k. 14. Many living and non-living things living together is called an ..... A) Ecosystem. B) Organism. C) Community. D) Population. Show Answer Correct Answer: A) Ecosystem. 15. This may cause a population to increase A) Increase of food supply. B) Removal of predators. C) Removal of disease. D) All of these. Show Answer Correct Answer: D) All of these. 16. Abiotic Factors are also known as: A) Nonliving things. B) Living things. C) None of these answers. D) None of above. Show Answer Correct Answer: A) Nonliving things. 17. A raccoon is a ..... A) Specialist. B) Herbivore. C) Carnivore. D) Generalist. Show Answer Correct Answer: D) Generalist. 18. An underground layer of rock that stores water A) Aquifer. B) Carbon cycle. Show Answer Correct Answer: A) Aquifer. 19. Which type of organisms always start off a food chain? A) Consumers. B) Decomposers. C) Producers. D) Scavengers. Show Answer Correct Answer: C) Producers. 20. The process that takes carbon out of the atmosphere. A) Combustion. B) Decomposition. C) Photosynthesis. D) Respiration. Show Answer Correct Answer: C) Photosynthesis. ← PreviousNext →Related QuizzesEcology Quiz 1Ecology Quiz 2Ecology Quiz 3Ecology Quiz 4Ecology Quiz 5Ecology Quiz 6Ecology Quiz 7Ecology Quiz 8Ecology Quiz 9Ecology Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books