This quiz works best with JavaScript enabled. Home > Science > Ecology – Quiz 68 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 68 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Bacteria are..... A) Producers. B) Consumers. C) Decomposers. D) None of above. Show Answer Correct Answer: C) Decomposers. 2. An organism that feeds on dead organic material and adds nutrients to the soil: A) Herbivore. B) Decoposer. C) Producer. D) Carnivore. Show Answer Correct Answer: B) Decoposer. 3. A producer is a (n) ..... A) Heterotroph. B) Omnitroph. C) Autotroph. D) Oscartroph. Show Answer Correct Answer: C) Autotroph. 4. Areas defined by their geographical location and ecological similarity are called? A) Ecozones. B) Biotopes. C) Biomes. D) Biodomes. Show Answer Correct Answer: C) Biomes. 5. Which one is bigger? A) Cell. B) Molecule. Show Answer Correct Answer: A) Cell. 6. What would most likely happen if an ecosystem no longer received sunlight? A) The number of herbivores would increase. B) The number of plants would increase. C) All living organisms would eventually die. D) None of above. Show Answer Correct Answer: C) All living organisms would eventually die. 7. Wood, leaves, and manure belong to a group of renewable energy sources called ..... A) Hydropower. B) Solar. C) Biomass. D) Fossil fuels. Show Answer Correct Answer: C) Biomass. 8. Anything that restricts the number of individuals in a population; food, water, shelter. A) Carrying capacity. B) Biotic. C) Limiting factors. D) Good luck. Show Answer Correct Answer: C) Limiting factors. 9. Deer are herbivores. A) Habitat. B) Niche. Show Answer Correct Answer: B) Niche. 10. Remora are small fish with a sucker-like organ that allows them to attach themselves to larger animals like a shark. By doing this, the remora is able to gain protection from the presence of the shark while helping the shark stay clear from parasites. This relationship shows ..... ? A) Parasitism. B) Mutualism. C) Commensalism. D) Predation. Show Answer Correct Answer: B) Mutualism. 11. This large biome takes up about 70% of the Earth ..... A) Ocean. B) Freshwater. C) Rainforest. D) Tundra. Show Answer Correct Answer: A) Ocean. 12. What's COMMUNITY? A) The adaptation of species. B) Living creatures+non living substances. C) Individual of the same species in an area. D) The whole of living species in an area. Show Answer Correct Answer: D) The whole of living species in an area. 13. Much of Canada is covered in pine spruce forests. The winter is cold and long. What is this biome? A) Tundra. B) Taiga or boreal forest. C) Deciduous forest. D) Grassland. Show Answer Correct Answer: B) Taiga or boreal forest. 14. What gas makes up 78% of Earth's atmosphere? A) Nitrogen. B) Carbon Dioxide. C) Oxygen. D) Methane. Show Answer Correct Answer: A) Nitrogen. 15. True or Falase:A natural disater is am example of a limiting factor A) True. B) False. Show Answer Correct Answer: A) True. 16. In an Ecosystem, matter flows: A) One way. B) In a cycle. Show Answer Correct Answer: B) In a cycle. 17. What is the movement of nutrients from storage source to exchange source? A) Recycling. B) Cycle. C) Stabilization. D) Wheels. Show Answer Correct Answer: B) Cycle. 18. The largest number of individuals that an area can support is called its ..... A) Limiting factor. B) Abiotic factor. C) Resource availability. D) Carrying capacity. Show Answer Correct Answer: D) Carrying capacity. 19. What does a limiting factor do? A) Makes a population grow large. B) Stops a population from growing large. C) Helps organisms adapt to abiotic factors. D) Provides geographical boundaries for migration. Show Answer Correct Answer: B) Stops a population from growing large. 20. A condition that occurs when two or more organisms compete for the same resources A) Competition. B) Predation. C) Parasitism. D) Mutualism. Show Answer Correct Answer: A) Competition. ← 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