This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 1 The Living World – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 1 The Living World Quiz 28 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which group forms 'red tides' due to rapid multiplication and toxin release? A) Chrysophytes. B) Dinoflagellates. C) Slime moulds. D) Euglenoids. Show Answer Correct Answer: B) Dinoflagellates. 2. A theory that demonstrates the dual importance of habitat size and distance in determining species richness. A) Ecological succession. B) Pioneer species. C) Island biogeography. D) Climax community. Show Answer Correct Answer: C) Island biogeography. 3. The third name in a trinomial nomenclature is A) Species. B) Subgenus. C) Ecotype. D) Subspecies. Show Answer Correct Answer: D) Subspecies. 4. Storage deposit A) PCBs. B) Salinity. C) Sink. D) Niche. Show Answer Correct Answer: C) Sink. 5. Which biome creates 50% of the world's oxygen? A) Desert. B) Marine. C) Grasslands. D) Tundra. Show Answer Correct Answer: B) Marine. 6. A hypothesis is ..... A) Testable. B) Invisible. C) Expensive. D) Unpredictable. Show Answer Correct Answer: A) Testable. 7. Define the term:Constants/controlled variables. A) Constants or controlled variables are factors in an experiment that are kept the same to ensure a fair test. B) Constants or controlled variables are the results measured in an experiment. C) Constants or controlled variables are the variables that are changed on purpose in an experiment. D) Constants or controlled variables are the errors that occur during an experiment. Show Answer Correct Answer: A) Constants or controlled variables are factors in an experiment that are kept the same to ensure a fair test. 8. Loss of habitat can lead to which of the following? A) Loss of specialist species and loss of species that occupy large territories. B) Loss of generalist species and loss of species that occupy small territories. C) Loss of specialist species and loss of R-selected species. D) None of the above. Show Answer Correct Answer: A) Loss of specialist species and loss of species that occupy large territories. 9. The process in which water is absorbed by the root systems of plants, moves up through the plants, passes through pores (stomata) in their leave or other parts, and evaporates into the atmosphere as water vapor is referred to as which of the following? A) Transpiration. B) Photosynthesis. C) Respiration. D) Evaporation. Show Answer Correct Answer: A) Transpiration. 10. Of the following ecosystems, which has the lowest net primary productivity, measured as kilocalories of energy produced per square meter per year? A) Taiga (boreal forest). B) Open ocean. C) Temperature grassland. D) Estuary. E) Agricultural land. Show Answer Correct Answer: B) Open ocean. 11. Movement from one area to another A) Extinction. B) Hibernation. C) Migration. D) Physical adaptation. Show Answer Correct Answer: C) Migration. 12. Which plant has a hard and thick stem and is known to live for many years? A) Herb. B) Shrub. C) Tree. D) Creeper. Show Answer Correct Answer: C) Tree. 13. Animals and plants are best protected in A) Zoos. B) Botanical gardens. C) Sanctuaries. D) National parks. Show Answer Correct Answer: D) National parks. 14. Producers A) Organisms that get their food by eating other organism. B) Organism the break down dead organism. C) Organisms that make their own food. D) None of the above. Show Answer Correct Answer: C) Organisms that make their own food. 15. Which law regulates the trade in endangered species between countries? A) CITES. B) Kyoto Protocol. C) Montreal Protocol. D) Endangered Species Act. Show Answer Correct Answer: A) CITES. 16. Metabolism is a defining characteristic of all living organism. Say True or False A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. Fresh water referrers to which of the following A) Oceans, rivers, lakes. B) Ponds, rivers, oceans. C) Lakes, ponds, streams. D) Streams, lakes, oceans. Show Answer Correct Answer: C) Lakes, ponds, streams. 18. One of the most important functions of botanicalgardens is that A) They provide a beautiful area for recreation. B) One can observe tropical plants there. C) They allow ex situ conservation ofgermplasm. D) They provide the natural habitat for wild life. Show Answer Correct Answer: C) They allow ex situ conservation ofgermplasm. 19. How do animals gain sulfur, phosphorus, carbon, and nitrogen from their environment? A) Eating other organisms. B) Drinking water. C) Exchange of gases. D) Mitosis & meiosis. Show Answer Correct Answer: A) Eating other organisms. 20. Reads the following statements1. Animals, mammals and dogs represents taxa at different levels.2. Animals with external ears and body hair are mammals.3. Ecological information form basis of modern taxonomy4.Systematics is based on evolutionaly relation.How many statements mentioned above are incorrect? A) Statement 3 incorrect. B) Statement 3 and 4 incorrect. C) Statement 1 and 3 incorrect. D) None of these incorrect. Show Answer Correct Answer: D) None of these incorrect. 21. A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits. A) Primary succession. B) Ecosystem service. C) Natural selection. D) Species diversity. Show Answer Correct Answer: C) Natural selection. 22. Which of the following characters given below displays the description of lowest taxonomic category of organisms in the plant and animal kingdom? A) It includes one or more than one order. B) It is a group containing one or more families. C) It is a group of related organisms that resemble one another. D) It is a group of organisms that are closely related and share similar characteristics. Show Answer Correct Answer: C) It is a group of related organisms that resemble one another. 23. What is the second lowest layer in the Rainforest? A) Forest Floor. B) Canopy. C) Emergents. D) Understory. E) Leafage. Show Answer Correct Answer: D) Understory. 24. A species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically. A) Easter Island. B) Experimental Design. C) Keystone species. D) Natural selection. Show Answer Correct Answer: C) Keystone species. 25. Slime moulds under suitable conditions form a large aggregation called: A) Mycelium. B) Sporangium. C) Plasmodium. D) Ascocarp. Show Answer Correct Answer: C) Plasmodium. ← 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