This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 1 The Living World – Quiz 72 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 1 The Living World Quiz 72 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Living things in an ecosystem are considered to be: A) Abiotic. B) Biotic. C) Producers. D) Decomposer. Show Answer Correct Answer: B) Biotic. 2. This area is a very harsh environment in the ocean due to tides crashing and receding. A) Coral Reef. B) Aphotic Zone. C) Abyss. D) Intertidal Zone. Show Answer Correct Answer: D) Intertidal Zone. 3. ICBN'S twelfth meeting held at A) USA. B) USSR. C) UK. D) Britain. Show Answer Correct Answer: B) USSR. 4. The defining feature of life is A) Growth. B) Reproduction. C) Growth and Reproduction. D) Metabolism. Show Answer Correct Answer: D) Metabolism. 5. Legally designated, discrete geographic area of the marine or estuarine environment that is set aside to conserve natural and cultural resources, such as marine life, habitats and heritage sites are called which of the following? A) MPAs (Marine Protected Areas). B) Marine Pollution Areas. C) Marine Protected Animals. D) Marine Preservation Acts. Show Answer Correct Answer: A) MPAs (Marine Protected Areas). 6. Bio systematics aims at A) The classification of organisms based on broad morphological characters. B) Delimiting various taxa of organisms and establishing their relationship. C) The classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies. D) Identification and arrangement of organisms on the basis of their cytological characteristics. Show Answer Correct Answer: C) The classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies. 7. What type of root system does a hibiscus plant have? A) None of the above. B) Taproot. C) Fibrous root. D) Adventitious root. Show Answer Correct Answer: B) Taproot. 8. Which of the following processes add methane (CH4) to the atmosphere? A) Breakdown of plant and animal remains in the soil. B) Leakage from natural gas pipelines. C) Food digestion by land animals. D) All of the above. Show Answer Correct Answer: D) All of the above. 9. Which of the following is an example of a unicellular organism? A) Dog. B) Fungi. C) Paramecium. D) Tree. Show Answer Correct Answer: C) Paramecium. 10. Which of the following statements is true of the phosphorus cycle? A) Phosphorus enters the atmosphere as phosphates. B) The phosphorus cycle utilizes the processes of erosion, and weathering. C) Phosphates are used in carbohydrate and glucose storage. D) The phosphorus cycle utilizes bacteria to breakdown phosphates and make them available for plants. Show Answer Correct Answer: B) The phosphorus cycle utilizes the processes of erosion, and weathering. 11. There are many different habitats around the world A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. The function of tongue is to A) Help in the act of swallowing. B) Help in mixing saliva with the food. C) Help in speaking. D) All the above. Show Answer Correct Answer: D) All the above. 13. Nonliving components of environment. A) Biotic factors. B) Nitrogen fixation. C) Abiotic factors. D) Ammoniafication. Show Answer Correct Answer: C) Abiotic factors. 14. ..... is the branch of science dealing with identification, nomenclature and classification of organisms. A) Morphology. B) Anatomy. C) Ecology. D) Taxonomy. Show Answer Correct Answer: D) Taxonomy. 15. What is living plant matter called in the nutrient cycle? A) Soil. B) Biomass. C) Litter. D) Abiotic. Show Answer Correct Answer: B) Biomass. 16. What type of organism is a eukaryotic, multicellular autotroph? A) Bacteria. B) Fungi. C) Animal. D) Plant. Show Answer Correct Answer: D) Plant. 17. The most abundant gas in the atmosphere is A) Nitrogen. B) Oxygen. C) Hydrogen. D) Carbon Dioxide. Show Answer Correct Answer: A) Nitrogen. 18. Select the choice that best fits each statement. The following question(s) refer to the following processes. Plant roots absorb ammonium ions and nitrate ions for use in making molecules such as DNA, amino acids, and proteins. A) Nitrification. B) Denitrification. C) Assimilation. D) Ammonification. E) Nitrogen fixation. Show Answer Correct Answer: C) Assimilation. 19. Quantitative Data A) Species that migrate into an ecosystem or are deliberately or accidentally introduced into an ecosystem by humans. B) Numerical data. C) Information describing color, odor, shape, or some other physical characteristic. D) The number and relative abundance of species in a biological community. Show Answer Correct Answer: B) Numerical data. 20. Which of the following best describes mutualism? A) A relationship where both species benefit from the interaction. B) A relationship where one species benefits and the other is harmed. C) A relationship where one species benefits and the other is unaffected. D) A relationship where both species are harmed. Show Answer Correct Answer: A) A relationship where both species benefit from the interaction. 21. What is the smallest unit of a living thing? A) Tissue. B) Cell. C) Organ. D) System. Show Answer Correct Answer: B) Cell. 22. Non-living objects like sand mounds, mountains and boulders grow by A) Cell division. B) Accumulation of material on the surface. C) Accretion. D) Both 2 & 3. Show Answer Correct Answer: D) Both 2 & 3. 23. Amoeboid protozoans move and capture food by: A) Cilia. B) Flagella. C) Pseudopodia. D) Spines. Show Answer Correct Answer: C) Pseudopodia. 24. The basis of taxonomy A) Characterisation& Identification. B) Classification. C) Nomenclature. D) All of the above. Show Answer Correct Answer: D) All of the above. 25. The first species that reappear after a major disruption to an ecosystem are known as ..... A) Primary consumers. B) Reintroduced species. C) Endangered Species. D) Pioneer species. Show Answer Correct Answer: D) Pioneer species. ← 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