This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 14 Ecosystem – Quiz 45 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 14 Ecosystem Quiz 45 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. As water moves through the water cycle, it changes state and location. A scientist measures the movement of water through the water cycle. Where is this scientist most likely to find water molecules that have not changed state or location for hundreds of years or more? A) River. B) Ocean. C) Glacial ice. D) Rain clouds. Show Answer Correct Answer: C) Glacial ice. 2. Shrimp are know to consume other dead shrimp, clams, worms, and decaying plant matter. Which of the following would be used to describe shrimp in this role in an ecosystem? A) Saprotroph. B) Detritivore. C) Primary consumer. D) Carnivore. Show Answer Correct Answer: B) Detritivore. 3. What shows the flow of energy in an ecosystem? A) A flow chart. B) A diagram. C) A graph. D) A food chain. Show Answer Correct Answer: D) A food chain. 4. What does the upward trajectory in temperature anomalies indicate? A) A concern due to the short timeframe. B) A decrease in global warming. C) A return to Ice House conditions. D) Stability in climate patterns. Show Answer Correct Answer: A) A concern due to the short timeframe. 5. Why are plants considered as producers? A) Plants convert energy from the sun into chemical energy in the form of glucose (food). B) Plants produce root crops that supply carbohydrates to animals. C) Plants provide vegetable for animals and human consumption. D) Plants produce fruits that can be eaten by animals. Show Answer Correct Answer: A) Plants convert energy from the sun into chemical energy in the form of glucose (food). 6. Which of the following best describes a community? A) Sharks, groupers, anemones and shrimp on a coral reef. B) Decorator crabs on the seafloor. C) Loggerhead sea turtles in Atlantic. D) Prairie grassland in Wyoming. Show Answer Correct Answer: A) Sharks, groupers, anemones and shrimp on a coral reef. 7. Third level of Organization A) Cells. B) Tissues. C) Organs. D) Organ System. E) Organism. Show Answer Correct Answer: C) Organs. 8. An animal called a divo lives on an island. This island is the perfect ecosystem for the divo because it has its only food, tree ants. One winter it got very cold and all the tree ants died. What will happen to the divos? A) Their fur grew longer and thicker. B) They dug holes and lived underground. C) They died. D) They switched to eating seeds. Show Answer Correct Answer: C) They died. 9. A consumer that eats both plants and animals is a ..... A) Omnivore. B) Producer. C) Carnivore. D) Herbivore. Show Answer Correct Answer: A) Omnivore. 10. The word formula for Photosynthesis is: A) Carbon dioxide + water $\rightarrow$ oxygen + glucose + water. B) Oxygen + water $\rightarrow$ carbon dioxide + glucose. C) Carbon dioxide + water $\rightarrow$ energy. D) None of the above. Show Answer Correct Answer: A) Carbon dioxide + water $\rightarrow$ oxygen + glucose + water. 11. The energy needed for photosynthesis comes from A) The heat of the sun. B) The light of the sun. C) Glucose. D) Water. Show Answer Correct Answer: B) The light of the sun. 12. Biotic factors include ..... A) Living things like animals, fungi, and plants. B) Landfills. C) Nonliving things like soil, rocks, and water. D) Both living and nonliving things. Show Answer Correct Answer: A) Living things like animals, fungi, and plants. 13. A local community group the cleans up the Don Valley is called A) Don't Mess with the Don. B) Clean up Crew. C) Humans cleaning the Don. D) The Rabbits. Show Answer Correct Answer: A) Don't Mess with the Don. 14. How do human activities impact biogeochemical cycles? A) Human activities impact biogeochemical cycles by altering the natural flow of elements and nutrients through the atmosphere, hydrosphere, and lithosphere. B) Human activities only have a positive impact on biogeochemical cycles. C) Biogeochemical cycles are not affected by human activities. D) Human activities have no impact on biogeochemical cycles. Show Answer Correct Answer: A) Human activities impact biogeochemical cycles by altering the natural flow of elements and nutrients through the atmosphere, hydrosphere, and lithosphere. 15. What are the two main types of freshwater wetlands? A) Lakes and ponds. B) Rivers and streams. C) Littoral zones and benthic zones. D) Marshes and swamps. Show Answer Correct Answer: D) Marshes and swamps. 16. Dalam suatu ekosistem danau, zooplankton berperan sebagai ..... A) Produsen. B) Konsumen tingkat I. C) Konsumen tingkat II. D) Pengurai. Show Answer Correct Answer: B) Konsumen tingkat I. 17. What is the goal of taxonomy? A) To explain the differences between living organisms. B) To classify living organisms into groups. C) To predict the types of undiscovered organisms. D) To establish relationships of organisms and their habitats. Show Answer Correct Answer: B) To classify living organisms into groups. 18. Which is the best definition of an ecosystem? A) All the organisms in an area interacting together. B) All the abiotic factors. C) All the biotic factors. D) All of the animals. Show Answer Correct Answer: A) All the organisms in an area interacting together. 19. What is the primary function of the roots in a plant? A) Photosynthesis. B) Water and nutrient absorption. C) Seed production. D) Pollination. Show Answer Correct Answer: B) Water and nutrient absorption. 20. Earthworms exhibit a tube-within-a-tube body plan with a digestive system that runs the entire length of its body. Earthworms get their energy by: A) Consuming living organisms. B) Converting energy in their surroundings in chemical energy. C) Internally digesting deceased organisms. D) Externally digesting deceased organisms. Show Answer Correct Answer: C) Internally digesting deceased organisms. 21. All organisms fall into two categories which are: A) Photosynthesis and cellular respiration. B) Autotroph and heterotroph. C) Biotic and abiotic. D) None of the above. Show Answer Correct Answer: B) Autotroph and heterotroph. 22. Which of the following are abiotic factors that shape ecosystems? A) Worms, plants and temperature. B) Wind, precipitation, and soil type. C) Niches, trees, and bacteria. D) Sunlight, mushrooms, and wind. Show Answer Correct Answer: B) Wind, precipitation, and soil type. 23. What is the study about ecosytem?? A) Environmental Science. B) Biology. C) Ecology. D) Botany. Show Answer Correct Answer: C) Ecology. 24. When small plants such as grasses and lichens colonize bare rock it is called: A) Primary Succession. B) Secondary Succession. C) Climax Community. D) Pioneer Species. Show Answer Correct Answer: A) Primary Succession. 25. Where does the food chain START? A) With consumers that eat grass. B) With the sun giving energy to producers. C) With the sun giving energy to consumers. D) With consumers eating other consumers. Show Answer Correct Answer: B) With the sun giving energy to producers. ← 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