This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 79 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 79 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In an energy pyramid, producers are at the: A) None of the above. B) Middle. C) Top. D) Bottom. Show Answer Correct Answer: D) Bottom. 2. As plant life decreases from deforestation and fossil fuel burning increases, the CO2 levels in the air will ....., causing the greenhouse effect to increase. A) Rise. B) Fall. C) Remain Constant. D) Fluctuate at random. Show Answer Correct Answer: A) Rise. 3. A group of organisms with similar characteristics that are able to interbreed or exchange genetic material A) Population. B) Organism. C) Species. D) Community. Show Answer Correct Answer: C) Species. 4. Where does all of the energy in any food chain come from? A) Producers. B) Consumers. C) Herbivores. D) The sun. Show Answer Correct Answer: D) The sun. 5. C6H12O6 is A) Sugar. B) Carbon dioxide. C) Chloroplast. D) Salt. Show Answer Correct Answer: A) Sugar. 6. A form of symbiosis where one organism benefits and one is harmed A) Mutualism. B) Commensalism. C) Parasitism. D) Vaderism. Show Answer Correct Answer: C) Parasitism. 7. Which of the following is not abiotic A) Sunlight. B) Wind. C) Temperature. D) Salinity. E) Predators. Show Answer Correct Answer: E) Predators. 8. Living organisms in an environment interact with one another and also with non living components forms an A) Ecosystem. B) Ecology. C) Biotic. D) Abiotic. Show Answer Correct Answer: A) Ecosystem. 9. Autotrophs make their own food. A) True. B) False. Show Answer Correct Answer: A) True. 10. Commensalism is when A) Both species benefit. B) One species benefits and one is harmed. C) One species benefits and one is unaffected. D) No one benefits. Show Answer Correct Answer: C) One species benefits and one is unaffected. 11. An animal that get its food and energy from eating producers A) Secondary Consumer. B) Tertiary Consumer. C) Primary Consumer. D) None of above. Show Answer Correct Answer: C) Primary Consumer. 12. Let's play ..... together. A) Beach. B) Sandwich. C) Checkers. D) Sea. Show Answer Correct Answer: C) Checkers. 13. Competition can happen within ..... A) Only the same species. B) Only among different species. C) Both same and different species. D) None of above. Show Answer Correct Answer: C) Both same and different species. 14. How do animals get the nitrogen they need? A) From the air they breathe. B) From the water they drink. C) From the food they eat. D) From the sun. Show Answer Correct Answer: C) From the food they eat. 15. What animal from the list below lives in the ocean ecosystem? A) Lion. B) Tiger. C) Bear. D) Dolphin. Show Answer Correct Answer: D) Dolphin. 16. An organism that breaks down and recycles dead organisms A) Decoposer. B) Consumer. C) Predator. D) None of above. Show Answer Correct Answer: A) Decoposer. 17. How are the living creatures in an ecosystem linked? A) By what they eat. B) By how they breathe. C) By their size. D) By their species'. Show Answer Correct Answer: A) By what they eat. 18. Which is NOT a way to help protect biodiversity A) Going organic. B) Saving energy. C) Using plastics whenever possible. D) None of above. Show Answer Correct Answer: C) Using plastics whenever possible. 19. Antelope and zebras interacting is an example of a (n) A) Community. B) Population. C) Ecosystem. D) Biome. Show Answer Correct Answer: A) Community. 20. A plover is a little bird that walks around inside a crocodile's open mouth and cleans between the crocodile's teeth. What type of relationship is this? A) Commensalism. B) Parasitism. C) Mutualism. D) Competition. Show Answer Correct Answer: C) Mutualism. ← PreviousNext →Related QuizzesScience QuizzesEcology Quiz 1Ecology Quiz 2Ecology Quiz 3Ecology Quiz 4Ecology Quiz 5Ecology Quiz 6Ecology Quiz 7Ecology Quiz 8Ecology Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books