This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 1 The Living World – Quiz 26 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 1 The Living World Quiz 26 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If the GPP of an area is 25 kcal/m2/yr and the NPP of the same area is 15 kcal/m2/yr, what is the amount of energy that is lost to respiration? A) 25 kcal/m2/yr. B) 15 kcal/m2/yr. C) 10 kcal/m2/yr. D) 40 kcal/m2/yr. Show Answer Correct Answer: C) 10 kcal/m2/yr. 2. In the desert plant like ..... are to be found A) Cactus. B) Mango. C) Lotus. D) Pine. Show Answer Correct Answer: A) Cactus. 3. What organism takes nitrogen from the air and puts it into molecules that plants can then use? A) Chemoautotrophs. B) Nitrogen fixing bacteria. C) Herbivores. D) Secondary consumers. Show Answer Correct Answer: B) Nitrogen fixing bacteria. 4. Which plant has flowers that are pinkish-purple in color? A) Neem. B) Tulsi. C) Hibiscus. D) Common grass. Show Answer Correct Answer: C) Hibiscus. 5. Which is the odd one in the following series? A) Sapiens. B) Americana. C) Rotundus. D) Hemidactylus. Show Answer Correct Answer: D) Hemidactylus. 6. Occurs when a species is no longer found in an area it once inhabited but is still found elsewhere in the world A) Global extinction. B) Local extinction. C) Mass extinction. D) Biomagnification. Show Answer Correct Answer: B) Local extinction. 7. Trophic levels are represented by A) Squares. B) Circles. C) Pyramids. D) Lines. Show Answer Correct Answer: C) Pyramids. 8. The number of species in a community ..... A) Species richness. B) Species evenness. C) All the above. D) None of the above. Show Answer Correct Answer: A) Species richness. 9. In which of the following, growth is seen only up to certain age, but cell division in certain tissues to replace lost cells? A) Man. B) Crow. C) Tiger. D) All of these. Show Answer Correct Answer: D) All of these. 10. Complete the nutrient cycle:1. Plants use nutrients in the soil to grow. 2. Plants are eaten by animals. 3. Plants and animals die and fall on the ground. 4: A) They decompose and return to the soil. B) They are removed by the wind. C) They remain on the surface. D) They begin to regrow. Show Answer Correct Answer: A) They decompose and return to the soil. 11. Biology is concerned with A) Living organisms. B) Biomass. C) DNA. D) Life as recorded by fossils. Show Answer Correct Answer: A) Living organisms. 12. Fill in the blank: ..... is the increase in concentration of slowly degradable, fat soluble chemicals such as DDT and PCBs in organisms at successively higher trophic levels of a food chain or food web. A) Biomagnification. B) Bioremediation. C) Bioaccumulation. D) Eutrophication. Show Answer Correct Answer: A) Biomagnification. 13. All the water areas on earth A) Lithosphere. B) Hydrosphere. C) Biosphere. D) Atmosphere. Show Answer Correct Answer: B) Hydrosphere. 14. The common characteristics between tomato and potato will be maximum at the level of their A) Family. B) Order. C) Division. D) Genus. Show Answer Correct Answer: A) Family. 15. The main ENERGY source for all things on Earth: A) Water. B) Chemicals. C) Oxygen. D) Sun. Show Answer Correct Answer: D) Sun. 16. Exemplified by ticks feeding on a deer A) Commensalism. B) Parasitism. C) Mutualism. D) Predation. E) Competition. Show Answer Correct Answer: B) Parasitism. 17. Which of the following is a defining characteristic of living organisms? A) Growth. B) Ability to make sound. C) Reproduction. D) Response to external stimuli. Show Answer Correct Answer: D) Response to external stimuli. 18. Species diversity A) A reduction in the genetic diversity of a population caused by a reduction in its size. B) The energy captured by producers in an ecosystem minus the energy producers respire. C) The number and relative abundance of species in a biological community. D) Type of succession that occurs in an area that was only partially destroyed by disturbances. Show Answer Correct Answer: C) The number and relative abundance of species in a biological community. 19. How do lichens contribute to primary succession? A) Lichens decompose organic matter from animals and plants. B) Lichens begin to break down rock to form soil. C) Lichens are nitrogen fixing bacteria. D) Lichens convert carbohydrates into fossil fuels. Show Answer Correct Answer: B) Lichens begin to break down rock to form soil. 20. Species evenness A) The number of different species in a community (synonym for species diversity). B) The formation of new and distinct species in the course of evolution. C) The range of genetic material present in a gene pool or population of a species. D) The relative proportion of different species in a given area. Show Answer Correct Answer: D) The relative proportion of different species in a given area. 21. Genus represents A) An individual plant or animal. B) A collection of plants or animals. C) Group of closely related species of plants and animals. D) None of the above. Show Answer Correct Answer: C) Group of closely related species of plants and animals. 22. Scientific name of Mango: A) Mangifera indica. B) Mangifera indica. C) Apis indica. D) Triticum aestivum. Show Answer Correct Answer: A) Mangifera indica. 23. What does a producer do? A) Absorbs energy from the Sun. B) Eats herbivores. C) Breaks down dead organisms. D) Produces light. E) Gives off energy to the surrounding area. Show Answer Correct Answer: A) Absorbs energy from the Sun. 24. Which of the following correctly lists the biomes in order from MOST productive to LEAST productive? A) Tundra > Tropical Rainforest > Savana. B) Tropical Rainforest > Desert > Savana. C) Savanna > Tropical Rainforest > Desert. D) Tropical Rainforest > Savana > Desert. Show Answer Correct Answer: D) Tropical Rainforest > Savana > Desert. 25. Which biogeochemical cycle does not contain an atmospheric stage A) Phosphorus. B) Carbon. C) Nitrogen. D) Sulfur. Show Answer Correct Answer: A) Phosphorus. ← 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