This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 15 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which kind of factor is this? sunlight A) Abiotic. B) Biotic. Show Answer Correct Answer: A) Abiotic. 2. All of the organisms living in a particular area (plants and animals) is known as what? A) Community. B) Ecosystem. C) Biome. D) Terrestrial. Show Answer Correct Answer: A) Community. 3. What is the likely result if an animal is introduced to an area where it has no predators? A) Its average body size will decrease. B) Its population will grow to a larger size. C) The species will evolve into a different species. D) It will become extinct. Show Answer Correct Answer: B) Its population will grow to a larger size. 4. Starts with BARE ROCK followed by lichen A) Primary succession. B) Secondary succession. C) Both types of succession. D) None of above. Show Answer Correct Answer: A) Primary succession. 5. Which picture shows "protect the environment" ? A) . B) . C) . D) . Show Answer Correct Answer: A) . 6. If a primary consumer (grazer) was the keystone species for an ecosystem and a trophic cascade occured due to its lower population. That would be a: A) Top-Down Effect. B) Bottom-Up Effect. Show Answer Correct Answer: B) Bottom-Up Effect. 7. The relationship between a Canadian lynx and a snowshoe hare is an example of A) Parasite and host. B) Predator and prey. C) Competition. D) Mutualism. Show Answer Correct Answer: B) Predator and prey. 8. A model that shows a simple diagram of how energy flows through an ecosystem is a(n) ..... A) Energy pyramid. B) Food web. C) Food chain. D) Food pyramid. Show Answer Correct Answer: C) Food chain. 9. The pattern of spacing a population within an area. A) Dispersion. B) Emigration. C) Migration. D) Immigration. Show Answer Correct Answer: A) Dispersion. 10. Acid rain A) Acid rain. B) Ozone. C) Rain. D) Tornado. Show Answer Correct Answer: A) Acid rain. 11. How does the food chain start? A) Plant life uses energy from the sun to make food. B) Insects like grasshoppers eat plant life. C) Animals like rats eat insects. D) Humans eat large animals and plant life. Show Answer Correct Answer: A) Plant life uses energy from the sun to make food. 12. Which relationship is referring to an interaction where food, shelter, support or transportation is provided for one or both organisms? A) Symbiosis. B) Predation. C) Competition. D) Parasitism. Show Answer Correct Answer: A) Symbiosis. 13. What is the Product of Anaerobic Decay of Waste Materials? A) Biogas. B) Carbon Dioxide. Show Answer Correct Answer: A) Biogas. 14. What is labeled as 4? A) Biosphere. B) Community. C) Ecosystem. D) Biome. Show Answer Correct Answer: C) Ecosystem. 15. When two squirrels fight over the same nut A) Competition. B) Predation. C) Mutualism. D) Commensalism. E) Parasitism. Show Answer Correct Answer: A) Competition. 16. What makes up an environment? A) Only biotic factors. B) Only abiotic factors. C) Both biotic and abiotic factors. D) Neither biotic nor abiotic factors. Show Answer Correct Answer: C) Both biotic and abiotic factors. 17. What is overgrazing? A) When beavers create a structure that keeps water from flowing through. B) When humans put toxic chemicals in the water. C) When herd animals (like cows) over graze or eat too much from the land. D) When people throw seeds all over the land. Show Answer Correct Answer: C) When herd animals (like cows) over graze or eat too much from the land. 18. Which of the examples below can BEST be described as mutualism between animals? A) A tapeworm lives in the intestine of a bird and consumes the food that the bird has eaten. B) Mountain lions and wolves fight each other for the same deer. C) A bird eats parasites off a rhinoceros while the rhinoceros provides protection to the bird. D) Rats live in the garbage dump of a town and rarely interact with people. Show Answer Correct Answer: C) A bird eats parasites off a rhinoceros while the rhinoceros provides protection to the bird. 19. What is one of the best ways to represent theinterdependence of all of the organisms in anecosystem? A) A cell model. B) A food chain. C) A diagram of the water cycle. D) A food web. Show Answer Correct Answer: D) A food web. 20. If PRODUCERS are removed from an ecosystem, how would it affect the food web? A) There would be no change in the ecosystem. B) All of the other animal populations would diminish and possibly die. C) All of the other animal populations would increase and thrive. D) None of above. Show Answer Correct Answer: B) All of the other animal populations would diminish and possibly die. ← 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