This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 14 Ecosystem – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 14 Ecosystem Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What does the Mandingly model focus on? A) Next Generation model of ecosystems and biodiversity. B) Historical analysis of human civilizations. C) Development of new computer technologies. D) Study of marine life exclusively. Show Answer Correct Answer: A) Next Generation model of ecosystems and biodiversity. 2. A consumer that eats ONLY plants is a ..... A) Predator. B) Omnivore. C) Herbivore. D) Carnivore. Show Answer Correct Answer: C) Herbivore. 3. The first species to colonize barren areas A) First species. B) Pioneer species. C) Pioneer adapter. D) New life. Show Answer Correct Answer: B) Pioneer species. 4. The place in which an organism lives A) Habitat. B) Population. C) Ecosystem. D) Niche. Show Answer Correct Answer: A) Habitat. 5. Molecules can be passed from one organism to another through the food ..... A) Web. B) Chain. C) Store. D) Processor. Show Answer Correct Answer: A) Web. 6. Density-dependent factor: A) Earthquake. B) Flood. C) Disease. D) Drought. Show Answer Correct Answer: C) Disease. 7. Which is the best definition of ecology? A) The study of how living things interact with each other and with their environment. B) The study of how live things evolve and change to meet their environmental needs. C) The study of the chemistry of living things. D) The study of how living things function in their environmet. Show Answer Correct Answer: A) The study of how living things interact with each other and with their environment. 8. Where in the food chain will you place a shark? A) Producers. B) Primary consumers. C) Secondary consumers. D) Decomposers. Show Answer Correct Answer: C) Secondary consumers. 9. A deer population has significantly increased, the best hypothesis is A) The deer's main predator has been eliminated. B) Competition increased. C) Decreased water levels of local ponds. D) Organisms that rely on similar food sources migrated to the area. Show Answer Correct Answer: A) The deer's main predator has been eliminated. 10. Final Trophic Level A) Producer. B) Primary Consumer. C) Secondary Consumer. D) Tertiary Consumer. Show Answer Correct Answer: D) Tertiary Consumer. 11. Why does increasing producers increase the populations of all trophic levels? A) Producers increase the size of a habitat. B) Producers help keep predator populations in check. C) With more energy available the carrying capacity increases. D) Producers do not have a large impact on population sizes. Show Answer Correct Answer: C) With more energy available the carrying capacity increases. 12. When must the planning of the mine reclamation process occur? A) Before mining begins. B) After mining has ended. C) After mining has begun. D) During the mining process. Show Answer Correct Answer: A) Before mining begins. 13. There is a population of 75 wolves in a forest that has a carrying capacity of 120. What is the maximum population growth rate if the population grows to 92 in one year? A) 0.833. B) 1.00. C) 0.604. D) 0.523. Show Answer Correct Answer: C) 0.604. 14. A living thing that can't make its own food and must eat other living things. A) Producer. B) Consumer. C) Decomposer. D) Instinct. Show Answer Correct Answer: B) Consumer. 15. The part of the Earth in which living things exist and interact A) Bio. B) Biodiversity. C) Biosphere. D) Terrestrial. Show Answer Correct Answer: C) Biosphere. 16. What term describes all living factors in an environment? A) Abiotic. B) Zoological. C) Biotic. D) Biological. Show Answer Correct Answer: C) Biotic. 17. Which of the following describes amino acid? A) Carried by mRNA and is a copy of DNA. B) Carried by tRNA and building blocks for proteins. C) Building blocks for DNA. D) None of the above. Show Answer Correct Answer: B) Carried by tRNA and building blocks for proteins. 18. If we talk about high biodiversity, few deciduous trees, tall grass, we are referring to: A) The rainforest (jungle). B) The Mediterranean forest. C) The savannah. D) The deciduous forest. Show Answer Correct Answer: A) The rainforest (jungle). 19. Cactus, snake, coyote, sagebrush, and hare are all examples of ..... within an ecosystem. A) Consumers. B) Abiotic factors. C) Biotic factors. D) Producers. Show Answer Correct Answer: C) Biotic factors. 20. What is the source of all the food in an ecosystem A) Consumers. B) Decomposers. C) Producers. D) None of the above. Show Answer Correct Answer: C) Producers. 21. Sunlight, soil, temperature, and water are all examples of biotic factors A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 22. What complements extinction in the processes discussed? A) Evolution. B) Speciation. C) Natural selection. D) Adaptation. Show Answer Correct Answer: B) Speciation. 23. Name one example of a carnivore. A) Elephant. B) Penguin. C) Lion. D) Giraffe. Show Answer Correct Answer: C) Lion. 24. To maintain BIODIVERSITY we need to use ecosystems in a sustainable way. What does a sustainable way mean? A) Using all of the resources in the ecosystem to help energy flow. B) Not overusing the resources in the ecosystem, so future land development can still occur in those areas. C) Using all of the resources in the ecosystem to help the natural cycles. D) Not overusing the resources in the ecosystem, so future generations can also meet their needs. Show Answer Correct Answer: D) Not overusing the resources in the ecosystem, so future generations can also meet their needs. 25. A bird hitches a free, safe ride on the back of a grey elephant. The elephant doesn't seem to mind and barely notices the bird. Which type of relationship is this? A) Mutualism. B) Commensalism. C) Parasitism. D) None of the above. Show Answer Correct Answer: B) Commensalism. ← 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 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 10Class 12 Biology Chapter 14 Ecosystem Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books