This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 257 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 257 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A collection of organisms that belong to different populations but all live in the same area and interact with one another. A) Population. B) Ecosystem. C) Community. D) Ecosphere. Show Answer Correct Answer: C) Community. 2. What is the term given to a group of populations of different species living in given area? A) Community. B) Habitat. C) Population. D) Ecosystem. Show Answer Correct Answer: A) Community. 3. A species that is in danger of dying out is called: A) Extinct. B) Endangered. C) Population. D) Community. Show Answer Correct Answer: B) Endangered. 4. Herbivores are..... A) Producers. B) Consumers. C) Decomposers. D) All three. Show Answer Correct Answer: B) Consumers. 5. As the world population increases A) Carbon dioxide increases. B) Carbon dioxide decreases. Show Answer Correct Answer: A) Carbon dioxide increases. 6. Phytoplankton $\rightarrow$ Zooplankton $\rightarrow$Minnows (small fish) $\rightarrow$ Perch (bigger fish)$\rightarrow$ Osprey (a bird)Which organism is at trophic level 4? A) Phytoplankton. B) Zooplankton. C) Minnows. D) Perch. Show Answer Correct Answer: D) Perch. 7. Archeabacteria ..... A) Are eukaryotic. B) Live in extreme environments. C) Are non-living. D) Live in the soil. Show Answer Correct Answer: B) Live in extreme environments. 8. The highest level of an organization A) Ecosystem. B) Population. C) Biosphere. D) Organism. Show Answer Correct Answer: C) Biosphere. 9. Biomass is A) The mass of nonliving organisms in an area or ecosystem at a given time. B) All the waste produced by organisms in an area. C) The mass of living organisms in an area or ecosystem at a given time. D) The energy in an ecosystem. Show Answer Correct Answer: C) The mass of living organisms in an area or ecosystem at a given time. 10. ..... is the average pattern for weather over a long period of time. A) Climate. B) Weather. C) Forecast. D) Sunlight. Show Answer Correct Answer: A) Climate. 11. All of the members of a species that occupy a certain area are defined as- A) Organism. B) Community. C) Population. D) Ecosystem. Show Answer Correct Answer: C) Population. 12. The living components of the bioshpere A) Biotic factor. B) Abiotic factor. C) Niche. D) Producer. Show Answer Correct Answer: A) Biotic factor. 13. Which zone has the role of-phytoplankton:serves as the base of the lake's food chain and producing oxygen A) Littoral zone. B) Aphotic zone. C) Photic zone. D) Limnetic zone. Show Answer Correct Answer: D) Limnetic zone. 14. Abby is walking to school with her best friend Jaylyn. They begin talking about everything they see including the ash trees, grass, weeds, ants, and people. They also notice how cold it is, how there are several large puffy clouds out, and how the sun is just starting to come up. What level of organization are they discussing? A) Community. B) Ecosystem. C) Biome. D) Biosphere. Show Answer Correct Answer: B) Ecosystem. 15. Explain why invertebrates are placed directly above the phytoplankton in this energy pyramid A) Because the invertebrates can only get energy from the bass. B) Because the plankton can only get energy from the sun. C) Because the birds can only get energy from the fish. D) Because the fish can only get energy from the sun. Show Answer Correct Answer: B) Because the plankton can only get energy from the sun. 16. Which describes the deep-water zone? A) It gets a lot of sunlight. B) It get no sunlight. C) No fish live there. D) Cattails and rushes grow there. Show Answer Correct Answer: B) It get no sunlight. 17. Which of the following breaks down organic matter and returns nutrients back to the soil? A) Scavengers. B) Decomposers. C) Herbivores. D) Omnivores. Show Answer Correct Answer: B) Decomposers. 18. Which of the following receives energy directly from the sun? A) Producers. B) Consumers. C) Decomposers. D) Inorganic Nutrients. Show Answer Correct Answer: A) Producers. 19. One organisms benefits and the other is not affect is known as A) Symbiosis. B) Mutualism. C) Commensalism. D) Parasitism. Show Answer Correct Answer: C) Commensalism. 20. The ability of the ecosystem to support organisms. A) Carrying Capacity. B) Limiting factor. C) Tolerance range. D) Optimum range. Show Answer Correct Answer: A) Carrying Capacity. ← 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