This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 130 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 130 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following describes the location of the Tundra biome? A) Eastern United States. B) Most of Canada. C) North of Canada. D) Near the equator. Show Answer Correct Answer: C) North of Canada. 2. Which of the following causes harmful algal blooms that result in dead zones in the ocean? A) Runoff of nitrogen and phosphorus-rich fertilizers. B) Burning of fossil fuels. C) Increased amounts of acidic precipitation. D) Increased levels of greenhouse gases. Show Answer Correct Answer: A) Runoff of nitrogen and phosphorus-rich fertilizers. 3. Biomes tend to be found at the same ..... ? A) Longitude. B) Latitude. C) Elevation. D) Climate. Show Answer Correct Answer: B) Latitude. 4. Groups of animals feed excessively from one area of land without letting the vegetation in that area fully recover. This is an example of A) Overgrazing. B) Deforestation. C) Urbanization. D) Invasive species. Show Answer Correct Answer: A) Overgrazing. 5. Carbon cycles through the biosphere in all of the following processes EXCEPT A) Photosynthesis. B) Transpiration. C) Burning of fossil fuels. D) Decomposition of plants and animals. Show Answer Correct Answer: B) Transpiration. 6. Water, soil, light and temperature are an example of a(n) ..... species A) Biotic. B) Abiotic. Show Answer Correct Answer: B) Abiotic. 7. A living thing that feeds on the wastes and remains of plants and animals. A) Food web. B) Producer. C) Consumer. D) Decoposer. Show Answer Correct Answer: D) Decoposer. 8. The removal of the predator populations from an ecosystem would most likely result in A) A decrease in all the prey populations. B) An increase in all the producer populations. C) An increase in ecosystem diversity. D) A decrease in ecosystem diversity. Show Answer Correct Answer: D) A decrease in ecosystem diversity. 9. Stability within an ecosystem is achieved partially bythe presence of organisms that break down importantmolecules and make them available for otherorganisms to use. These organisms are A) Plants. B) Herbivores. C) Scavengers. D) Decomposers. Show Answer Correct Answer: D) Decomposers. 10. An organism that must eat another organism to get its energy. A) Producer. B) Consumer. C) Omnivore. D) Carnivore. E) Herbivore. Show Answer Correct Answer: B) Consumer. 11. Animals release ..... into the environment, which plants use for ..... A) Oxygen/respiration. B) Carbon dioxide/photosynthesis. C) Water vapor/ photosynthesis. D) Carbon dioxide/respiration. Show Answer Correct Answer: B) Carbon dioxide/photosynthesis. 12. Honey guide birds alert and direct badgers to bee hives. The badgers then expose the hives and feed on the honey first. Next the honey guide birds eat. A) Symbiosis. B) Parasitism. C) Mutualism. D) Commensalism. Show Answer Correct Answer: C) Mutualism. 13. European rabbits were released into the Australian wild in 1859. They had no predators and found plenty of grasses, roots, fruit and seeds to eat. Rabbits likely impacted the Australian ecosystem in all of the following ways EXCEPT- A) Decrease in number and types of plants. B) Fewer animals with a diet that includes plants. C) Erosion of soil held in place by plants. D) Shorter time for plants to produce seeds. Show Answer Correct Answer: D) Shorter time for plants to produce seeds. 14. Invasive species can ..... A) Increase biodiversity. B) Decrease biodiversity. C) Help biodiversity. D) None of above. Show Answer Correct Answer: B) Decrease biodiversity. 15. Organisms that break down dead or decaying organisms. A) Decomposers. B) Producers. C) Consumers. D) None of above. Show Answer Correct Answer: A) Decomposers. 16. The California condor, the mountain gorrila and the northern white rhinoceros are just a few examples of the world's most ..... A) Dumping site. B) Global warming. C) Environment. D) Endangered species. Show Answer Correct Answer: D) Endangered species. 17. Energy pyramid importance A) Showing nergy flow in the ecosystem. B) The old pyrimds. C) The meat and plant together. D) Dead organisms. Show Answer Correct Answer: A) Showing nergy flow in the ecosystem. 18. Which type of ecosystem would be able to recover more quickly from a species going extinct? A) An ecosystem with low biodiversity. B) An ecosystem with high biodiversity. Show Answer Correct Answer: B) An ecosystem with high biodiversity. 19. How many coliforms are in dirty water? A) 1 bacterium per 10cm3. B) 15 bacterium per 45cm3. C) 100 bacterium per 100m3. D) 1 bacterium per 100cm3. Show Answer Correct Answer: D) 1 bacterium per 100cm3. 20. A cow walking through a field and a bird eating the bugs it disturbs A) Mutualism. B) Commensalism. C) Parasitism. D) Vaderism. Show Answer Correct Answer: B) Commensalism. ← 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