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Class 11 Biology Chapter 1 The Living World Quiz 19 (60 MCQs)

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1. A design in which researchers manipulate an independent variable and measure a dependent variable to determine a cause-and-effect relationship
2. What type of movement do fish use?
3. Which of the following is NOT an example of a commons?
4. How does the hydrosphere interact with the carbon cycle?
5. Which percent of the Earth's water is available as liquid freshwater?
6. The model of the energy available at each level that ALWAYS gets smaller as you go up is the
7. Where are most cold environments found?
8. What is the definition of deforestation?
9. Which of the following is a potential benefit of genetically modified crops?
10. What groups of organisms are most in danger of extinction?
11. Organisms who depend on plants and animals for their food are called:
12. A dikaryon is formed when
13. What service do decomposers perform?
14. What is the main way carbon dioxide is pulled out of the air?
15. Which of the following taxonomic categories includes one or more related orders?
16. The first hardy, species-often microbes, mosses, and lichen-that begin colonizing a site as the first stage of ecological succession is characterized as which of the following?
17. Which is a useful living thing
18. What do you call ALL the living things in the same environment?
19. Exemplified by bees consuming nectar and carrying pollen from one flower to another
20. Term given to describe the 2 name naming system is:
21. The breaking of habitats into smaller pieces is called .....
22. A collection of species which bear a close resemblance to one another in the morphological characters of the floral parts is known as
23. How do living things remove their waste
24. This is known as the set of resources a population is theoretically capable of using in the wild.
25. Fill in the blank: ..... are species that are found only in one area. Such species are especially vulnerable to extinction.
26. When a population has reached carrying capacity
27. A system made up of organisms interacting with one another
28. Which of the cycles is considered to be the SLOWEST?
29. What type of plants are tall with hard stems?
30. Which of the following is the best definition for estuary?
31. Living organisms show
32. What is missing from this food chain?Grass > Grasshopper > Bird > Snake
33. What two human activities contribute the most to global warming?
34. The main cause of biodiversity loss worldwide is
35. The water in a closed terrarium is constantly recycled, passing from liquid form to gas and back again. As the moisture in the air condenses on the container's walls, it returns to the soil and is absorbed by the plants' roots. The water cycle is one example of a ..... cycle in which abiotic and biotic factors work together to sustain ecosystems.
36. Chromosomes present in cytoplasm and made of two chromatid in stages of mitosis-
37. A species whose activities have a particularly significant role in determining community structure
38. Nicotiana is a .....
39. Which biome is characterized by low temperatures and low amounts of rainfall?
40. The Indian Botanical Garden and National Botanical Research Institute are located respectively in
41. Which of the following element's cycles includes long-term storage in rocks and a short storage time in the atmosphere?
42. Which of the following organism do not reproduce?
43. Which best describes the concept of net primary production?
44. Animals, birds, fish plants are A. Living things B. Non living things C. Man-made
45. The fibrous root system is found in:
46. What describes the daily fluctuations of temperature and precipitation?
47. The gradual changes in an ecosystem over time, usually after a disturbance (like a dam changing a forest)
48. Organisms which can freely interbreed and produce fertile offspring and have similar coded information or blue print for making these organisms are called
49. A relationship, like with the bird and the giraffe, where both parties benefit
50. Binomial system of nomenclature was given by?
51. Which category divide the animals on the basis of backbone
52. The impact of a person or community on the environment, expressed as the amount of land required to sustain their use of natural resources.
53. All 7 taxonomic category together constitute .....
54. These man-made structures are a threat to river ecosystems
55. Lack of food, too little space, and polluted water are examples of this
56. The result of a bottleneck event is .....
57. Phytoplankton are
58. Reproduction absent in?
59. Why do trees growing in hills have conical shape?
60. Study the four statements (I-IV) given below and select one correct one out of them:
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