This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 14 Ecosystem – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 14 Ecosystem Quiz 18 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is Not living? A) Bacteria. B) Fungus. C) Mushroom. D) Virus. Show Answer Correct Answer: D) Virus. 2. Where an organism lives and what it does for a living, including how they interact with biotic and abiotic factors is a species A) Habitat. B) Ecosystem. C) Niche. D) Community. Show Answer Correct Answer: C) Niche. 3. Which of the following describes the leaves in a coniferous forest? A) Circular-shaped. B) Square-shaped. C) Pointy with needles. D) None of the above. Show Answer Correct Answer: C) Pointy with needles. 4. Which two plant species are most associated with sclerophyll in Australia? A) Eucalyptus and Acacias. B) Mountain Devils and Macadamias. C) Grevilleas and Hakeas. D) Banksias and Waratahs. Show Answer Correct Answer: A) Eucalyptus and Acacias. 5. What are the smallest of all living things? A) Atoms. B) Cells. C) Molecules. D) Viruses. Show Answer Correct Answer: B) Cells. 6. What is the role of abiotic factors in an ecosystem? A) They determine the types of organisms that can survive. B) They have no role in an ecosystem. C) They only affect the non-living components of an ecosystem. D) They are responsible for the genetic diversity within species. Show Answer Correct Answer: A) They determine the types of organisms that can survive. 7. Nitrogen is released to the abiotic parts of the of the biosphere from the processes of death and ..... A) Decay by bacteria. B) Infiltration of the groundwater. C) Runoff. D) Lightning in the storm and clouds. Show Answer Correct Answer: A) Decay by bacteria. 8. A symbiotic relationship where one species benefits and the other is harmed. A) Symbiosis. B) Mutualism. C) Parasitism. D) Commensalism. Show Answer Correct Answer: C) Parasitism. 9. All living things need ..... and ..... factors to survive. A) Food and plants. B) Biotic and abiotic. C) Sunlight and good weather. D) Cans of tuna and water. Show Answer Correct Answer: B) Biotic and abiotic. 10. Choose the correct order of taxa from LARGEST to SMALLEST A) Species, Genus, Family, Order, Class, Phylum, Kingdom. B) Family, Kingdom, Order, Phylum, Class, Order, Species, Genus. C) Kingdom, Phylum, Class, Order, Family, Genus, Species. D) Phylum, Order, Species, Family, Genus, Kingdom. Show Answer Correct Answer: C) Kingdom, Phylum, Class, Order, Family, Genus, Species. 11. Primary consumers get energy from A) Eating other consumers. B) Eating producers. C) Converting light energy from the sun to chemical energy. D) Consuming dead or decaying matter. Show Answer Correct Answer: B) Eating producers. 12. Which of the following is a BIOTIC factor in an ecosystem? A) Trees. B) Air. C) Water. D) Rocks. Show Answer Correct Answer: A) Trees. 13. What is the main source of energy in a food chain? A) The soil. B) The sun. C) Animals. D) Plants. Show Answer Correct Answer: B) The sun. 14. Which of the following sets includes only abiotic factors? A) Light, water, pH, parasites. B) Soil, wind, shade, temperature. C) Rocks, competition, humidity, UV radiation. D) Pollution, decomposers, rainfall, drought. Show Answer Correct Answer: B) Soil, wind, shade, temperature. 15. The part of the environlent that keeps a population's size at a level below its full potential A) Limiting factor. B) Stopping factor. C) Carrying factor. D) None of the above. Show Answer Correct Answer: A) Limiting factor. 16. Where are most coral reefs found? A) Warm, shallow areas of the neritic zone. B) Deepest, dark areas of the benthic zone. C) Deep water of the open ocean. D) None of the above. Show Answer Correct Answer: A) Warm, shallow areas of the neritic zone. 17. Where does the energy in a food chain come from? A) Sun. B) Predators. C) Prey. D) Scavengers. Show Answer Correct Answer: A) Sun. 18. The plants and animals that live together in a habitat form a ..... A) Community. B) Habitat. C) Population. D) Ecosystem. Show Answer Correct Answer: A) Community. 19. Which of the following is NOT a characteristic that all organisms share? A) All organisms must use resources for energy. B) All organisms must produce food. C) All organisms respond to stimuli. D) All organisms reproduce. Show Answer Correct Answer: B) All organisms must produce food. 20. Which of the following is the characteristics of smooth muscle? A) Long cylindrical, has single central nucleus, work under consciousness. B) Spindle shaped, has many nucleus on the edge, work under consciousness. C) Spindle shaped, has single central nucleus, work out of consciousness. D) Long cylindrical, has single central nucleus, work out of consciousness. Show Answer Correct Answer: C) Spindle shaped, has single central nucleus, work out of consciousness. 21. The role an organism plays in its Ecosystem is its: A) Community. B) Niche. C) Competition. D) Biodiversity. Show Answer Correct Answer: B) Niche. 22. What is the term used to describe the process by which green plants and other organisms convert sunlight into chemical energy? A) Photosynthesis. B) Dessication. C) Respiration. D) Decomposition. Show Answer Correct Answer: A) Photosynthesis. 23. How does pH affect enzyme activity? A) Enzymes are not affected by pH. B) Extreme pH levels can denature enzymes, reducing their activity. C) Enzymes work best at any pH level. D) Enzymes are only active at neutral pH. Show Answer Correct Answer: B) Extreme pH levels can denature enzymes, reducing their activity. 24. Which is true about the first (bottom) trophic level in an energy pyramid? A) It has the most available energy and includes all consumers. B) It has the most avaliable energy and includes all producers. C) It includes primary consumers (heterotrophs), which are known as herbivores. D) In includes primary consumers (autotrophs), which are known as herbivores. Show Answer Correct Answer: B) It has the most avaliable energy and includes all producers. 25. Hierarki satuan kehidupan penyusun ekosistem yang tepat adalah ..... A) Individu $\rightarrow$ populasi $\rightarrow$ komunitas $\rightarrow$ ekosistem. B) Ekosistem $\rightarrow$ komunitas $\rightarrow$ populasi $\rightarrow$ individu. C) Individu $\rightarrow$ komunitas $\rightarrow$ populasi $\rightarrow$ ekosistem. D) Ekosistem $\rightarrow$ populasi $\rightarrow$ komunitas $\rightarrow$ individu. Show Answer Correct Answer: A) Individu $\rightarrow$ populasi $\rightarrow$ komunitas $\rightarrow$ ekosistem. ← 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