This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 1 The Living World – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 1 The Living World Quiz 8 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The net annual primary productivity of a particular wetland ecosystem is found to be 10, 000 kcal/m2 per year. If respiration by the aquatic producers is 21, 000 kcal/m2 per year, what is the gross annual primary productivity for this ecosystem, in kcal/m2 per year? A) 11, 000. B) 21, 000. C) 31, 000. D) 41, 000. Show Answer Correct Answer: C) 31, 000. 2. Taxonomic key is one of the taxonomic tools in the identification and classification of plants and animals. It is used in the preparation of A) Monographs. B) Flora. C) Both Monograph and flora. D) None of these monographs and flora. Show Answer Correct Answer: C) Both Monograph and flora. 3. The number of species in a given area A) Species richness. B) Evolution. C) Species evenness. D) Phylogeny. Show Answer Correct Answer: A) Species richness. 4. This is NOT a part of the phosphorus cycle. A) Phosphate is incorporated into sedimentary rocks. B) Phosphate bound to soil. C) Atmospheric phosphate. D) Phosphate is absorbed from the soil by plants. Show Answer Correct Answer: C) Atmospheric phosphate. 5. Why are bees considered a keystone species? A) The honey they make supports the bear population. B) They pollinate flowers that produce fruit which supports the ecosystem. C) They sting when threatened. D) They live in hives. Show Answer Correct Answer: B) They pollinate flowers that produce fruit which supports the ecosystem. 6. How do social structures influence economic opportunities? A) Social structures influence economic opportunities by determining access to resources, networks, and systemic barriers. B) Social structures have no impact on economic opportunities. C) Economic opportunities are solely determined by individual effort. D) Social structures only affect cultural aspects, not economic ones. Show Answer Correct Answer: A) Social structures influence economic opportunities by determining access to resources, networks, and systemic barriers. 7. Kingdom Protista consists of what kind of organisms? A) Multicellular, non-movable, prokaryotic. B) Unicellular, movable, eukaryotic. C) Oldest, simplest and primitive organisms. D) None of the above. Show Answer Correct Answer: B) Unicellular, movable, eukaryotic. 8. The breaking up of habitat into smaller pieces, usually because of human activity is defined as which term? A) Habit fragmentation. B) Habit stacking. C) Habit elimination. D) Habit reinforcement. Show Answer Correct Answer: A) Habit fragmentation. 9. Which kingdom is formed by unicellular organisms with a prokaryotic cell? A) Protoctista Kingdom. B) Monera Kingdom. C) Fungi Kingdom. D) Plantae Kingdom. Show Answer Correct Answer: B) Monera Kingdom. 10. Where is the largest reservoir for the phosphorus cycle? A) Rocks and minerals. B) The ocean. C) The atmopshere. D) Fossil fuels. Show Answer Correct Answer: A) Rocks and minerals. 11. The band of rain around the equator is called? A) Inter Convergence Tropical area. B) Inter Tropical Convergence Zone. C) All the above. D) None of the above. Show Answer Correct Answer: B) Inter Tropical Convergence Zone. 12. What type of movement do fish use to swim? A) Swimming with fins. B) Flying. C) Walking. D) Crawling. Show Answer Correct Answer: A) Swimming with fins. 13. How can biodiversity loss impact human health? A) Biodiversity loss improves food security and health. B) Biodiversity loss can negatively impact human health by increasing disease spread, reducing food security, and limiting medicinal resources. C) Biodiversity loss leads to more medicinal resources. D) Biodiversity loss has no effect on human health. Show Answer Correct Answer: B) Biodiversity loss can negatively impact human health by increasing disease spread, reducing food security, and limiting medicinal resources. 14. The twin characteristics of growth are A) Increase in mass and number of indivduals. B) Increase in mass and increase in space. C) Increase in volume and increase in size. D) None of the above. Show Answer Correct Answer: A) Increase in mass and number of indivduals. 15. What is the transfer of nutrients through an ecosystem is known as? A) Food chain. B) Food web. C) The nutrient cycle. D) A biome. Show Answer Correct Answer: C) The nutrient cycle. 16. Why is the ocean important to the carbon cycle? A) It keeps sediment containing carbon underwater for millions of years. B) The ocean gives out more carbon then it takes in (increases global warming). C) The ocean isn't important to the carbon cycle. D) None of the above. Show Answer Correct Answer: A) It keeps sediment containing carbon underwater for millions of years. 17. In an experiment, the standard that is used for comparison A) Source. B) Control. C) Chemotrophs. D) Ecotone. Show Answer Correct Answer: B) Control. 18. Founder effect A) A species that influences the survival of many other species in an ecosystem. B) The number of different species in a community (synonym for species diversity). C) First species to populate an area during primary succession. D) Genetic drift that occurs after a small number of individuals colonize a new area. Show Answer Correct Answer: D) Genetic drift that occurs after a small number of individuals colonize a new area. 19. Which of the following combinations is possible: A) Each category has taxon at various level. B) Each Taxon has category at various level. C) Category and taxon are same. D) Category, rank and taxon all are same. Show Answer Correct Answer: A) Each category has taxon at various level. 20. In angiosperm, characters of flowers are used in classification because A) Flowers are attractive. B) Flowers are large. C) Characters of flowers are conservative. D) None of the above. Show Answer Correct Answer: C) Characters of flowers are conservative. 21. Which of the following taxonomic categories includes all the others? A) Family. B) Order. C) Genus. D) Species. Show Answer Correct Answer: B) Order. 22. Desert plant leafs are modified into A) Thorns. B) Fleshy. C) Roots penetrate deep into soil. D) None of the above. Show Answer Correct Answer: A) Thorns. 23. Want more Ques A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 24. Species that are native to and found only within a limited area A) Foundation species. B) Keystone species. C) Indicator species. D) Endemic species. Show Answer Correct Answer: D) Endemic species. 25. Assertion (A):Every organism possesses reproduction, growth, development, adaptation and death like unique characters.Reason (R):Energy transformation is essential for every organism. A) Both (A) and (R) are true, and (R) is the correct explanation of (A). B) Both (A) and (R) are true, and (R) is not the correct explanation of (A). C) (A) is true but (R) is false. D) (A) is false but (R) is true. Show Answer Correct Answer: B) Both (A) and (R) are true, and (R) is not the correct explanation of (A). ← 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 9Class 11 Biology Chapter 1 The Living World Quiz 10Class 11 Biology Chapter 1 The Living World Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books