This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 1 The Living World – Quiz 27 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 1 The Living World Quiz 27 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is not a category? A) Aves. B) Class. C) Phylum. D) Genus. Show Answer Correct Answer: A) Aves. 2. The largest reservoir of nitrogen is the: A) Oceans. B) Rivers. C) Rock, Lithosphere & Land. D) Atmosphere. Show Answer Correct Answer: D) Atmosphere. 3. A species that influences the survival of many other species in an ecosystem A) Endemic species. B) Pioneer species. C) Keystone species. D) Indicator species. Show Answer Correct Answer: C) Keystone species. 4. What advantage do specialist species have in habitats that remain constant? A) They can easily switch their diet to a new food source. B) They have a broad range of tolerance. C) They are less likely to become extinct. D) They are highly competitive and invasive. Show Answer Correct Answer: C) They are less likely to become extinct. 5. Which biome is characterised by having no trees and permanently frozen sub-soil? A) Polar. B) Tundra. C) Taiga. D) Alpin. Show Answer Correct Answer: B) Tundra. 6. Which of the following is a heterotrophic organism? A) Tiger. B) Mango Tree. C) Paddy Plant. D) Grass. Show Answer Correct Answer: A) Tiger. 7. What is a carbon sink? A) Something that adds to the atmosphere. B) Something that removes carbon from the atmosphere. C) Something that adds carbon to the earth's crust. D) Something that removes carbon from the earth's crust. Show Answer Correct Answer: B) Something that removes carbon from the atmosphere. 8. The total number of different species in a given area is called A) Species richness. B) Evolution. C) Species evenness. D) Phylogeny. Show Answer Correct Answer: A) Species richness. 9. A naturally occurring unit of organisms and their physical environment is called: A) A biotic environment. B) A population. C) A community. D) An ecosystem. Show Answer Correct Answer: D) An ecosystem. 10. The word 'taxonomy' comes from two Greek words: A) Taxis, nomos. B) Bios, logos. C) Chemeia, logist. D) None of the above. Show Answer Correct Answer: A) Taxis, nomos. 11. Which is the best example of a disruption that will lead to a population bottleneck? A) A tsunami wipes out the entire population of plants. B) A new food source is available to a population of cats. C) A wild fire kills off a significant portion of a deer population. D) Climate change causes the local population of birds to migrate elsewhere. Show Answer Correct Answer: C) A wild fire kills off a significant portion of a deer population. 12. A living organism is unexceptionally differentiated from a nonliving structure on the basis of A) Reproduction. B) Growth and movement. C) Interaction with environment. D) Responsiveness. Show Answer Correct Answer: D) Responsiveness. 13. The best way to preserve biodiversity is to ..... A) Stop using all plastics. B) Protect and maintain habitats. C) Reduce our impact on pollution. D) Lower our need for poultry and beef. Show Answer Correct Answer: B) Protect and maintain habitats. 14. Barnacles attach themselves to the skin of whales. This allows them to filter feed as the whale swims. The whale is unaffected. This is an example of ..... A) Competition. B) Predation. C) Mutualism. D) Commensalism. Show Answer Correct Answer: D) Commensalism. 15. The standard size of herbarium sheet is A) 42cmx29cm. B) 41cm x 29cm. C) 41cm x 28 cm. D) 40cm x 30cm. Show Answer Correct Answer: B) 41cm x 29cm. 16. Who is the father of modern taxonomy? A) Aristotle. B) Theraphrastus. C) John Ray. D) Carolus Linnaeus. Show Answer Correct Answer: D) Carolus Linnaeus. 17. An example of an unicellular organism would be: A) Monkey. B) Bacteria. C) Spider. D) Human. Show Answer Correct Answer: B) Bacteria. 18. Which of the following statements is true about adaptations? A) Adaptations help an animal living in its habitat. B) Most animals do not have adaptations. C) Animals do not need adaptations to survive. D) All animals have some type of adaptations. Show Answer Correct Answer: D) All animals have some type of adaptations. 19. Who was the first to classify all animals in the History of Animalia? A) Aristotle. B) Linnaeus. C) Augustin. D) Walter Rosen. Show Answer Correct Answer: A) Aristotle. 20. Gradual changes occurs in the body parts and also in the behaviour of organisms which helps them to adjust to their surroundings such changes are called ..... A) Adaptation. B) Classification. C) All the above. D) None of the above. Show Answer Correct Answer: A) Adaptation. 21. ..... is the value of an organism, species, ecosystem, or the Earth's biodiversity based on its existence, regardless of whether it has any usefulness to humans. A) Intrinsic/existence value. B) Market value. C) Instrumental value. D) Aesthetic value. Show Answer Correct Answer: A) Intrinsic/existence value. 22. Identify from the following, the only taxonomic category that has a real existence. A) Phylum. B) Species. C) Genus. D) Kingdom. Show Answer Correct Answer: B) Species. 23. Which of the following is correct statement About biology A) Story of life on earth. B) Evolution of living organisms on earth. C) Present past, future are linked to one another by sharing of common genetic material but to varying degrees. D) All above are correct. Show Answer Correct Answer: D) All above are correct. 24. Which of the following best represents inbreeding? A) Removing DNA from an organism. B) Changing traits based on environment. C) Crossing 2 similiar animals. D) Crossing 2 different animals. Show Answer Correct Answer: C) Crossing 2 similiar animals. 25. What do you understand by the term 'mycelium'? A) Mould hyphae's growth into a cottony mass. B) Fungi which causes Athlete's foot. C) Long filaments containing cytoplasm and nuclei. D) None of the above. Show Answer Correct Answer: A) Mould hyphae's growth into a cottony mass. ← 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