This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 1 The Living World – Quiz 69 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 1 The Living World Quiz 69 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following best describes gene therapy? A) Replacing defective genes with healthy ones. B) Cloning organisms. C) Cross-breeding plants. D) Studying genetic disorders. Show Answer Correct Answer: A) Replacing defective genes with healthy ones. 2. Competition between members of the same species A) Net primary productivity. B) Chesapeake Bay Watershed. C) Biotic factors. D) Intraspecific competition. Show Answer Correct Answer: D) Intraspecific competition. 3. Movement in fish is aided by: A) Fins. B) Wings. C) Legs. D) None of the above. Show Answer Correct Answer: A) Fins. 4. In taxonomic hierarchy, cats are placed under the genus A) Felis. B) Panthera. C) Canis. D) None of these. Show Answer Correct Answer: A) Felis. 5. Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales. What kind of relationship is this? A) Mutualism. B) Parasitism. C) Commensalism. D) None of the above. Show Answer Correct Answer: C) Commensalism. 6. Which one of these is an example of a detrivore: A) Bacteria. B) Mole. C) Vulture. D) Earthworm. Show Answer Correct Answer: D) Earthworm. 7. Fill in the blank: ..... is the range of environmental conditions, such as temperature, salinity, or sunlight, that an organism or species can survive and thrive within before experiencing injury or death. A) Ecological tolerance. B) Carrying capacity. C) Biotic potential. D) Limiting factor. Show Answer Correct Answer: A) Ecological tolerance. 8. A living organism is differentiated from non-living structure based on A) Reproduction. B) Growth. C) Metabolism. D) Movement. Show Answer Correct Answer: D) Movement. 9. According to binomial nomenclature, two words used for naming a plant or animal are A) Species and genus. B) Genus and species. C) Species and family. D) Genus and family. Show Answer Correct Answer: B) Genus and species. 10. Which of the following has two humps? A) Camel. B) Horse. C) Elephant. D) None of the above. Show Answer Correct Answer: A) Camel. 11. Which is not a type of selection? A) Intelligent. B) Artificial. C) Natural. D) Random. Show Answer Correct Answer: A) Intelligent. 12. Cellular organisation of the body is the defining ..... of life forms A) Feature. B) Character. C) Property. D) Form. Show Answer Correct Answer: A) Feature. 13. Camel's hump stores ..... which helps it to survive in the desert. A) Water. B) Fat. C) Carbohydrate. D) Proteins. Show Answer Correct Answer: B) Fat. 14. The most effective way to protect biodiversity is through ..... A) Habitat fragmentation. B) Habitat destruction. C) Habitat preservation. D) None of the above. Show Answer Correct Answer: C) Habitat preservation. 15. Which statement is true of a mutualistic relationship: A) One species benefits and one is unharmed. B) One species benefits and one is harmed. C) Both species benefit. D) Both species are harmed. Show Answer Correct Answer: C) Both species benefit. 16. The biosphere contains A) All life on Earth. B) All life, except bacteria. C) All plant life. D) Animal life and plant life. Show Answer Correct Answer: A) All life on Earth. 17. Which one of the following taxonomical aid is used for identification of plants and animals based on similarities and dissimilarities? A) Flora. B) Keys. C) Monographs. D) Catalogues. Show Answer Correct Answer: B) Keys. 18. Which of the following are defining characters of living beings A) Growth and Reproduction. B) Reproduction and cellular structure. C) Growth and Cellular structure. D) Cellular Structure and Metabolism. Show Answer Correct Answer: D) Cellular Structure and Metabolism. 19. Which nitrogen cycle process breaks down atmospheric nitrogen (N$_{2}$) using bacteria or lightning strikes into a usable form for producers A) Nitrogen fixation. B) Ammonification. C) Nitrification. D) Dentrification. Show Answer Correct Answer: A) Nitrogen fixation. 20. A cloned daughter organism receives ..... from the identical parent organism. A) An egg. B) The DNA (nucleus). C) The DNA and egg. D) None of the above. Show Answer Correct Answer: B) The DNA (nucleus). 21. An organism in which photosynthesis occurs: A) Grasshopper. B) Parrot. C) Mango Tree. D) Bacteria. Show Answer Correct Answer: C) Mango Tree. 22. Taxonomy is:- A) Identification. B) Characterization. C) Characterization, identification, nomenclature and classification. D) Characterization, identification, nomenclature, classification and evolutionary history also. Show Answer Correct Answer: C) Characterization, identification, nomenclature and classification. 23. Which of the following is correctly matched without exception in regard to plant classification? A) Family-Poaceae-ae. B) Division-Pteridophyta-phyta. C) Class-Bryopsida-sida. D) Genus-Solanum-um. Show Answer Correct Answer: A) Family-Poaceae-ae. 24. An observer notes that the various birds in her yard feed on are using different parts of the tree for nesting sites and food. This is an example of ..... A) Division of labor. B) Resource conservation. C) Resource partitioning. D) Mutualism. Show Answer Correct Answer: C) Resource partitioning. 25. What is the defining 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). ← 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