This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 14 Ecosystem – Quiz 37 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 14 Ecosystem Quiz 37 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which statement BEST describes how matter moves within and between ecosystems? A) Matter flows in a one-way direction through food chains and food webs. B) Matter cycles between trophic levels in food chains and food webs. C) Matter is made and destroyed as it is used by living things. D) Matter cycles through food webs and biogeochemical cycles. Show Answer Correct Answer: D) Matter cycles through food webs and biogeochemical cycles. 2. The number of species in a community is called the A) Species population. B) Species index. C) Species diversity. D) Species richness. Show Answer Correct Answer: D) Species richness. 3. An uncut lawn eventually becomes a meadow and then a forest. This process is an example of ..... A) Aphotic zones. B) Primary succession. C) Secondary succession. D) Estuary. Show Answer Correct Answer: C) Secondary succession. 4. Which of the following characteristics do all plants share? A) They are all prokaryotes. B) They are all single-celled. C) They all produce flowers. D) They are all autotrophs. Show Answer Correct Answer: D) They are all autotrophs. 5. The energy stored in plant biomass is transferred through ..... A) Water cycle. B) Food chains. C) Carbon cycle. D) Nitrogen cycle. Show Answer Correct Answer: B) Food chains. 6. 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) Space. C) Cloud cover in the atmosphere. D) Types of trees in the area. Show Answer Correct Answer: A) Supply of food. 7. Relationship where both organism benefit A) Competition. B) Commensalism. C) Mutualism. D) Parasitism. Show Answer Correct Answer: C) Mutualism. 8. Scientists around the world use a standardized taxonomic system. Why would scientists want to use a taxonomic system that is standardized? A) In order to avoid confusion with the identification of organisms. B) Because Linnaeus established the system. C) So that Latin names can be applied for a practical purpose. D) In order to place organisms in different groups. Show Answer Correct Answer: A) In order to avoid confusion with the identification of organisms. 9. Which plant tissue is responsible for transporting water from roots to leaves? A) Phloem. B) Xylem. C) Epidermis. D) Cambium. Show Answer Correct Answer: B) Xylem. 10. A bird in a tree watched as a lion stalked, attacked, and then ate a zebra. Which of these animals was the prey? A) Bird. B) Lion. C) Zebra. D) All of the above. Show Answer Correct Answer: C) Zebra. 11. Photosynthesis is the most important chemical process on earth. It takes place in the ..... A) Chlorophyll. B) Chloroplast. C) Roots. D) None of the above. Show Answer Correct Answer: B) Chloroplast. 12. Which organism must eat other living things for energy? A) Consumer. B) Producer. C) Decomposer. D) Plants. Show Answer Correct Answer: A) Consumer. 13. Plants use CO2 in the process of ..... to make ..... and oxygen. A) Cellular respiration, water. B) Photosynthesis, glucose (sugar). C) Photosynthesis, water. D) Cellular respiration, glucose (sugar). Show Answer Correct Answer: B) Photosynthesis, glucose (sugar). 14. List three examples of living things in an ecosystem. A) Rocks, water, air. B) Cars, buildings, computers. C) Plants, animals, microorganisms. D) Books, pencils, paper. Show Answer Correct Answer: C) Plants, animals, microorganisms. 15. Name three human-made disruptions to ecosystems. A) Wildlife conservation, Deforestations. B) Reforestation, Buildng Dams. C) Natural Disasters. D) Deforestation, pollution, urbanization. Show Answer Correct Answer: D) Deforestation, pollution, urbanization. 16. People who study the different types of ecosystems are called A) Economies. B) Economics. C) Ecologist. D) Environmentalist. Show Answer Correct Answer: C) Ecologist. 17. The living part of an ecosystem A) Biotic. B) Abiotic. C) Mother Earth. D) Flowers. Show Answer Correct Answer: A) Biotic. 18. Energy used by most living things on Earth comes from the process of photosynthesis. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 19. An environmental factor such as storms and extreme heat or cold that affects population regardless of their density A) Density-dependent factor. B) Population density. C) Dispersion. D) Density-independent factor. Show Answer Correct Answer: D) Density-independent factor. 20. True or False:An ecosystem is a community of only LIVING things in their environment. A) X. B) True. C) False. D) X. Show Answer Correct Answer: C) False. 21. The forests that grow near the back waters of sea are A) Teak forests. B) Evergreen forests. C) Deciduous forests. D) Mangrove forests. Show Answer Correct Answer: D) Mangrove forests. 22. Which type of mining has the smallest environmental footprint? A) Drilling. B) Underground mining. C) Open pit mining. D) Room and pillar mining. Show Answer Correct Answer: A) Drilling. 23. The word ecosystem was coined by A) A.G.Tansley. B) Hackel. C) Aristotle. D) Robert Hook. Show Answer Correct Answer: A) A.G.Tansley. 24. What is the name for all the animals of the same species living in an ecosystem?? A) Community. B) Population. C) Biosphere. D) All of these. Show Answer Correct Answer: B) Population. 25. Food chains show energy transfer between organisms. The size of a food chain can vary, yet there is a limit to the number of levels that a food chain can reach. Why is there a limit to the number of levels that a food chain can reach? A) Plants are not infinitely in the world. B) Producers can only eat what is available. C) Carnivores are too big to be eaten. D) Energy is lost when you move up a trophic level. Show Answer Correct Answer: D) Energy is lost when you move up a trophic level. ← PreviousNext →Related QuizzesClass 12 Biology Chapter 14 Ecosystem Quiz 1Class 12 Biology Chapter 14 Ecosystem Quiz 2Class 12 Biology Chapter 14 Ecosystem Quiz 3Class 12 Biology Chapter 14 Ecosystem Quiz 4Class 12 Biology Chapter 14 Ecosystem Quiz 5Class 12 Biology Chapter 14 Ecosystem Quiz 6Class 12 Biology Chapter 14 Ecosystem Quiz 7Class 12 Biology Chapter 14 Ecosystem Quiz 8Class 12 Biology Chapter 14 Ecosystem Quiz 9Class 12 Biology Chapter 14 Ecosystem Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books