This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 280 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 280 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Symbiotic relationship where one species benefits and the other isn't helped or hurt. A) Mutualism. B) Commensalism. C) Parasitism. D) Predation. Show Answer Correct Answer: B) Commensalism. 2. What are factors that affect carrying capacity? A) Biotic only. B) Biotic and abiotic. C) Depends on the ecosystem. D) Abiotic only. Show Answer Correct Answer: B) Biotic and abiotic. 3. Do plants support the carbon cycle? A) Yes. B) No. Show Answer Correct Answer: A) Yes. 4. Soil, dirt, rocks, precipitation, air, water, sunlight are examples of the non-living parts of the environment known as what? A) Aquatic. B) Biotic. C) Abiotic. D) Terrestrial. Show Answer Correct Answer: C) Abiotic. 5. Scavengers consume the soft tissues of ..... animals. A) Energy. B) Dead. Show Answer Correct Answer: B) Dead. 6. The number one threat to biodiversity A) Pollution. B) Fragmentation. C) Habitat destruction. D) Limiting factors. Show Answer Correct Answer: C) Habitat destruction. 7. Animals that feed on other animals that they have NOT killed A) Scavengers. B) Predators. C) Producers. D) Herbivores. Show Answer Correct Answer: A) Scavengers. 8. Linear feeding relationships are A) Food chain. B) Food web. C) Food net. D) Predation. Show Answer Correct Answer: A) Food chain. 9. Aquatic ecosystem that has a thin layer of water covering soil that is wet most of the time is called ..... A) Wetland. B) Estuary. C) Lake. D) Puddle. Show Answer Correct Answer: A) Wetland. 10. Transpiration is A) What happens to you when you exercise a lot. B) The process of converting gas into ammonia. C) The loss of water from a plant through its leaves. D) Converting organisms into gas. Show Answer Correct Answer: C) The loss of water from a plant through its leaves. 11. Primary source of ecosystem energy A) Solar energy. B) Thermal energy. C) Wind energy. D) Fuel energy. Show Answer Correct Answer: A) Solar energy. 12. In commensalism A) Both species fight for something. B) Both species benefit. C) One species is killed. D) One species is unaffected. Show Answer Correct Answer: D) One species is unaffected. 13. What are the key features of the Tundra? A) Cold winter, thin acidic soil, evergreen trees. B) Treeless, permafrost, cold dark winters. C) Ong cool summers, short dark winters, migrating animals. D) Many evergreen trees, short moist summers, long snowy winters. Show Answer Correct Answer: B) Treeless, permafrost, cold dark winters. 14. What type of factor has an increasing impact as the population size increases? A) Density-independent. B) Density-dependent. C) Cohort effect. D) Survivorship factor. Show Answer Correct Answer: B) Density-dependent. 15. ..... can be hammered i different shapes A) Nonmetals. B) Metalloids. C) Metal. D) None of above. Show Answer Correct Answer: C) Metal. 16. Which symbols best describe parasitism? A) +, +. B) +, -. C) +, 0. D) -, 0. Show Answer Correct Answer: B) +, -. 17. An organism that eat's plants and meat. A) Herbivore. B) Omnivore. C) Carnivore. D) Detrivorous. Show Answer Correct Answer: B) Omnivore. 18. The pattern of spacing among individuals within the geographic boundaries is called A) Boundaries. B) Dispersion. C) Pursuing. D) Separation. Show Answer Correct Answer: B) Dispersion. 19. Mushrooms often grow around dead plants such as decomposing trees. They break down these dead organisms and put matter back into the ground for other plants to use. What type of consumer are mushrooms? A) Carnivore. B) Omnivore. C) Herbivore. D) Decoposer. Show Answer Correct Answer: D) Decoposer. 20. In an energy pyramid, energy ..... as you move up the pyramid. A) Increases. B) Decreases. C) Stays the same. D) Changes up and down. Show Answer Correct Answer: B) Decreases. ← 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