This quiz works best with JavaScript enabled. Home > Science > Earth > Ecology – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Ecology Quiz 12 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Agrocenosis A) Artificial biocenosis created in order to obtain the agricultural production. B) Evolutionally appeared adjustment of organs. C) A substance with a great specific. D) None of above. Show Answer Correct Answer: A) Artificial biocenosis created in order to obtain the agricultural production. 2. A close relationship between two species that benefits at least one of the species. A) Symbiosis. B) Predation. C) Competition. D) Niche. Show Answer Correct Answer: A) Symbiosis. 3. What is an example of a collection source? A) Animals. B) The birds. C) Breakers. D) Lithosphere. Show Answer Correct Answer: D) Lithosphere. 4. Net primary productivity (NPP) is A) The transfer of energy through an ecosystem. B) The amount of organic material available to herbivores. C) The amount of organic material made in photosynthesis. D) The amount of energy reaching the earth's surface. Show Answer Correct Answer: B) The amount of organic material available to herbivores. 5. If the population of grizzly bears gradually increases over time, which of the following will most likely occur? A) The number of prey species will decrease. B) The size of the bear population will continue to increase. C) The bear population in that area will eventually die out. D) The number of prey species will increase. Show Answer Correct Answer: A) The number of prey species will decrease. 6. An organization that creates its own food: A) Producer. B) Consumer. C) Squirrel. D) Director. Show Answer Correct Answer: A) Producer. 7. The following diagrams represent a pyramid of numbers for two different ecosystems. What is the tertiary consumer for the aquatic ecosystem? A) Zooplankton. B) Herring. C) Sea lion. D) Phytoplankton. Show Answer Correct Answer: C) Sea lion. 8. What law best relates to energy loss within an ecosystem? A) First law of thermodynamics. B) Second law of thermodynamics. C) Third law of thermodynamics. D) Law of conservation of matter. Show Answer Correct Answer: B) Second law of thermodynamics. 9. After a volcanic eruption, volcanic rock is present (but no soil). Which of the following states the most likely order of succession that would be seen? A) Lichens $\rightarrow$ Shrubs $\rightarrow$ Grasses $\rightarrow$ Trees. B) Lichens $\rightarrow$ tree $\rightarrow$ shrubs$\rightarrow$Grasses. C) Grasses $\rightarrow$ Lichens $\rightarrow$ Shrubs $\rightarrow$ Trees. D) Lichens $\rightarrow$ Grasses $\rightarrow$ Shrubs $\rightarrow$ Trees. Show Answer Correct Answer: D) Lichens $\rightarrow$ Grasses $\rightarrow$ Shrubs $\rightarrow$ Trees. 10. What Tundra Has The Polar Bear? A) Arctic. B) Alpine. Show Answer Correct Answer: A) Arctic. 11. Which are examples of abiotic factors? A) Any living factor. B) Humans, other members of the same species. C) Wind, humidity, acidity. D) Mutualism, commensalism, parasitism. Show Answer Correct Answer: C) Wind, humidity, acidity. 12. A semi-enclosed area where fresh water from a river meets salty water from the sea. A) Watershed. B) Groundwater. C) Estuary. D) Ocean. Show Answer Correct Answer: C) Estuary. 13. ..... is a particular area where an animal, plant, or organism lives. A) An ecosystem. B) To habitat. C) A niche. D) An abiotic factor. Show Answer Correct Answer: B) To habitat. 14. A relationship in which one organism benefits but the other is harmed is called ..... A) Commensalism. B) Mutualism. C) Parasitism. D) Succession. Show Answer Correct Answer: C) Parasitism. 15. In a large Maine forest with many animals and lots of space, there are only a small number of bears. Which of these most likely limits the population of bears in the forest? A) Supply of food. B) Living space. C) Cloud cover in the atmosphere. D) None of above. Show Answer Correct Answer: A) Supply of food. 16. For a given species, the maximum rate of increase per individual under ideal condition is A) Biotic potential. B) Territorial behavior. C) Carrying capacity. D) Environmental resistance. Show Answer Correct Answer: A) Biotic potential. 17. Which answer best describes a decomposser? A) An organism that produces oxygen. B) An organism that is dead and decomposing. C) An organism that is not natures recycler. D) An organism that gets energy by breaking down dead organisms. Show Answer Correct Answer: D) An organism that gets energy by breaking down dead organisms. 18. Factors plants compete for include: A) Space and light. B) Space, light and water. C) Space, light, water and mineral ions. D) Space, light, water, mineral ions and chloroplasts. Show Answer Correct Answer: C) Space, light, water and mineral ions. 19. ONE organism gets HELPED in the relationship and the other is HARMED A) Parasitism. B) Competition. C) Mutualism. D) Commensalism. Show Answer Correct Answer: A) Parasitism. 20. What is another name for consumers? A) Autotroph. B) Heterotroph. Show Answer Correct Answer: B) Heterotroph. ← 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