This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 50 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 50 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which type of competition is responsible for shaping the structure of a population? A) Interspecific. B) Intraspecific. Show Answer Correct Answer: B) Intraspecific. 2. The living part of an ecosystem A) Biotic. B) Abiotic. C) Mother Earth. D) Flowers. Show Answer Correct Answer: A) Biotic. 3. Relationship in which one organism benefits and the organism is not affected A) Parasitism. B) Mutualism. C) Commensalism. D) None of above. Show Answer Correct Answer: C) Commensalism. 4. What is the single most important factor contributing to losing or creating endangered species? A) Clearcut logging. B) Water pollution. C) Air pollution. D) Habitat loss. Show Answer Correct Answer: A) Clearcut logging. 5. What is the term for a community of living and non-living things in a particular environment A) Ecosystem. B) Habitat. C) Ecology. D) Biology. Show Answer Correct Answer: A) Ecosystem. 6. ..... is a collection or group of different populations living in the same geographical area at the same time. A) Population. B) Habitat. C) Niche. D) Community. Show Answer Correct Answer: D) Community. 7. Segregate garbage A) Dispose of. B) Extinction. C) Sort out rubbish. D) Earthquake. Show Answer Correct Answer: C) Sort out rubbish. 8. One single animal A) Organism. B) Population. C) Community. D) Ecosystem. Show Answer Correct Answer: A) Organism. 9. How are biomes characterized? A) Climates. B) Biotic Factors. C) Abiotic Factors. D) All are ways to characterize a biome. Show Answer Correct Answer: D) All are ways to characterize a biome. 10. What is a population? A) One individual member of a species. B) A group of individuals of the same species that live in the same area. C) A community of different species and their environment. D) None of the above. Show Answer Correct Answer: B) A group of individuals of the same species that live in the same area. 11. Cold forested region dominated by cone bearing evergreen trees. A) Tundra. B) Taiga. Show Answer Correct Answer: B) Taiga. 12. The series of changes that occurs in an area where no soil or organisms exist is called this A) Succession. B) Primary succession. C) Secondary succession. D) Climax community. Show Answer Correct Answer: B) Primary succession. 13. The role of plants in a food web is A) Consumer. B) Decoposer. C) Predator. D) Producer. Show Answer Correct Answer: D) Producer. 14. What can producers do? A) Make sugar by using photosynthesis. B) Break down materials and return them to the soil. C) Rely on other organisms to get their sugar. D) Eat both plants and animals. Show Answer Correct Answer: C) Rely on other organisms to get their sugar. 15. Another name for a consumer is a A) Autotroph. B) Heterotroph. Show Answer Correct Answer: B) Heterotroph. 16. What biotic factor does every food chain start with? A) Producers. B) Sun. C) Consumer. D) Decomposers. Show Answer Correct Answer: A) Producers. 17. What are the similarities between a strawberry plantation and a meadow ecosystem? A) Have an open cycle of substances. B) They are characterized by a short length of power circuits. C) They lack secondary consumers. D) Have food chains and networks. Show Answer Correct Answer: D) Have food chains and networks. 18. Which of the following describes #1? A) An ecosystem is the interaction between biotic and biotic factors. B) A community is a group of different populations in the same area. C) An organism is one living thing. D) A population is a group of the same organisms. Show Answer Correct Answer: B) A community is a group of different populations in the same area. 19. The following are all examples of ..... within an ecosystem. Grass, trees, flowers, bears, and fish A) Abiotic factors. B) Biotic factors. C) Extinction. D) None of above. Show Answer Correct Answer: B) Biotic factors. 20. Which living thing? Classified as the number 1 consumer A) Cat. B) Cobra. C) Seagull. D) Green tea worm. Show Answer Correct Answer: D) Green tea worm. ← 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