This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 1 The Living World – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 1 The Living World Quiz 16 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. COMPETITION is an important part of how species interact because they need to fight for limited resources in an environment to survive and reproduce. Some species avoid competition by finding ways to share resources through a finding a NICHE. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 2. This rate of reaction can be measured in the dark by determining the amount of oxygen gas consumed in a period of time. A) Cellular respiration. B) Photosynthesis. C) All the above. D) None of the above. Show Answer Correct Answer: A) Cellular respiration. 3. Ecological tolerance is A) The relationship in which two species live close together. B) Series of gradual changes that occur in a community following a disturbance. C) Any living environmental factor such a predation or competition for food. D) The range of abiotic conditions that an organism or species is able to survive in. Show Answer Correct Answer: D) The range of abiotic conditions that an organism or species is able to survive in. 4. Many organisms donot reproduce like A) Mule, worker honey bee. B) Hinny. C) Infertile human couples. D) All above are correct. Show Answer Correct Answer: D) All above are correct. 5. Which of the following is NOT considered to be a natural disruption to an ecosystem? A) Volcanic eruption. B) Hurricane. C) Air pollution. D) Earthquake. Show Answer Correct Answer: C) Air pollution. 6. The major abiotic factors that influence aquatic ecosystems include A) Water temperature and amount of light. B) Plants and animals. C) Water and plants growing there. D) None of the above. Show Answer Correct Answer: A) Water temperature and amount of light. 7. Related genera belong to the same A) Species. B) Variety. C) Family. D) Breed. Show Answer Correct Answer: C) Family. 8. What is the primary focus of the 'Project Tiger' initiative? A) To promote tourism. B) To build more zoos. C) To plant more trees. D) To increase the population of tigers. Show Answer Correct Answer: D) To increase the population of tigers. 9. Which of the following organisms does not reproduce? A) Mule. B) Worker bee. C) Infertile human female. D) All of these. Show Answer Correct Answer: D) All of these. 10. Which of the following is NOT an adaptation in reptiles? A) Scaly skin. B) Thin soles. C) Clawed toes. D) Hollow bones. Show Answer Correct Answer: D) Hollow bones. 11. What is the single most important difference between the marine, freshwater, and estuary biomes? A) Salinity (dissolved salt). B) Sunlight. C) Oxygen. D) Amount of Water. Show Answer Correct Answer: A) Salinity (dissolved salt). 12. What is the name of NH$_{3}$? A) Ammonia. B) Ammonium. C) Nitrate. D) Nitrite. E) Nitrous oxide. Show Answer Correct Answer: A) Ammonia. 13. Selective breeding is ..... A) A process to create an organism with desired traits from parents with those desired traits. B) Natural method of producing offspring with desired traits. C) Creating a new species. D) Making organisms reproduce during times of stress. Show Answer Correct Answer: A) A process to create an organism with desired traits from parents with those desired traits. 14. Basic unit or smallest taxon of classification is A) Species. B) Kingdom. C) Family. D) Variety. Show Answer Correct Answer: A) Species. 15. All living organisms can be classified into different tax this process of classification is A) Taxonomic hierarchy. B) Taxonomy. C) Taxonomic category. D) Taxon. Show Answer Correct Answer: B) Taxonomy. 16. Term Biodiversity was defined by A) Tansley. B) Walter. C) Wilson. D) Mendal. Show Answer Correct Answer: C) Wilson. 17. What is the relationship between biodiversity and climate change? A) Biodiversity and climate change are unrelated phenomena. B) Climate change increases biodiversity in ecosystems. C) Biodiversity has no impact on climate change. D) Biodiversity and climate change are interconnected; biodiversity helps ecosystems adapt to climate change, while climate change poses risks to biodiversity. Show Answer Correct Answer: D) Biodiversity and climate change are interconnected; biodiversity helps ecosystems adapt to climate change, while climate change poses risks to biodiversity. 18. Bacteria fix nitrogen on plant roots. Plant roots provide sugar to bacteria. This is an example of A) Mutualism. B) Parasitism. C) Commensalism. D) Competition. Show Answer Correct Answer: A) Mutualism. 19. Which is a fresh water ecosystem? A) River. B) Estuary. C) Ocean. D) None of the above. Show Answer Correct Answer: A) River. 20. Which is NOT a freshwater ecosystem? A) A river. B) A lake. C) An estuary. D) A stream. Show Answer Correct Answer: C) An estuary. 21. In an ecosystem organisms and their environment are: A) Interdependent. B) Independent. C) Intradependent. D) Codependent. Show Answer Correct Answer: A) Interdependent. 22. A large extinction of many different types of species in a relatively short period of time A) Mass extinction. B) Keystone species. C) Species richness. D) National forest. Show Answer Correct Answer: A) Mass extinction. 23. Food chains demonstrate A) Flow of energy. B) Exchange of matter. C) Biogeochemical pathways. D) Relationships between symbiotic species. Show Answer Correct Answer: A) Flow of energy. 24. Ecosystem Service:Ecosystems and living organisms create buffers against natural disasters, thereby preventing possible damage. A) Provisioning. B) Regulating. C) Supporting. D) Cultural. Show Answer Correct Answer: B) Regulating. 25. A ..... is a virgin and/or old second-growth forests containing trees that are often hundreds-sometimes thousands-of years old. Examples include forest of Douglas fir, western hemlock, giant sequoias, and coastal redwoods in the western U. S. A) Old-growth forests. B) Young plantations. C) Urban parks. D) Desert landscapes. E) Managed farmlands. Show Answer Correct Answer: A) Old-growth forests. ← PreviousNext →Related QuizzesClass 11 Biology Chapter 1 The Living World Quiz 1Class 11 Biology Chapter 1 The Living World Quiz 2Class 11 Biology Chapter 1 The Living World Quiz 3Class 11 Biology Chapter 1 The Living World Quiz 4Class 11 Biology Chapter 1 The Living World Quiz 5Class 11 Biology Chapter 1 The Living World Quiz 6Class 11 Biology Chapter 1 The Living World Quiz 7Class 11 Biology Chapter 1 The Living World Quiz 8Class 11 Biology Chapter 1 The Living World Quiz 9Class 11 Biology Chapter 1 The Living World Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books