Global MCQ Practice

🌐 Total MCQ
🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books

Class 12 Biology Chapter 15 Biodiversity And Conservation Quiz 8 (60 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Program that has helped return threatened species to the wild.
2. The ecosystem approach to conservation is partly based on the idea that
3. A country that has a history of religious/cultural traditions that emphasized the protection of nature
4. Which is NOT one of the three main levels of biodiversity?
5. Which island has the most biodiversity?
6. The separation of an ecosystem into small pieces of land
7. Which of the following organisms is most affected by biomagnification?
8. Biodiversity relates to the variability among .....
9. What is habitat restoration?
10. What does the designation "threatened" mean for species?
11. One way that zoos and aquariums help increase wildlife populations is through
12. What is a species that gives early warning signs of damage or danger to a community?
13. Some animals of Australia and South America show similarities because
14. True or false:An ecosystem with high genetic diversity is more sustainable than an ecosystem with low genetic diversity.
15. Biodiversity hotspot can be described as what
16. What is poaching?
17. Which Mass Extinction are we in the middle of?
18. This classification of risk means that the species is at serious risk of extinction.
19. Materials or organisms found in the biosphere.
20. Any resource replaced by natural process more quickly than it is consumed.
21. Gradual process of a species becoming extinct.
22. Atmospheric chemical changes that threaten biodiversityand global stability.
23. What is the purpose of ecosystem restoration?
24. Resistance refers to the ability of an ecosystem to recover from damage.
25. Which human activity has probably contributed most to the acidification of lakes in forests?
26. A large-scale dying out of a large percentage of all living organisms in an area within a short time.
27. The genetic variation shown by Rauwolfia might be in terms of
28. Adding natural predators to a degraded ecosystem is called what???
29. Water pollution that occurs when substances rich in nitrogen and phosphorous flow into waterways which causes a dense growth of plant life and death of animal life from lack of oxygen.
30. What is the environmental condition that kills individuals without the adaptation?
31. According to the passage, the relationship between species richness (S) and area (A) on a logarithmic scale is described by the equation:log S = log C + Z log A. Fill in the blanks:S = $C \times A^{Z}$
32. What is the major law in the United States that protects biodiversity?
33. A common trait of an invasive species is
34. In which area of the world would I expect to see more biodiversity?
35. What happens during biomagnification?
36. Temporary or permanent removal of large expanses of forest for agriculture, settlements, or other uses
37. What effect, if any, would the extinction of a mutualistic pollinator have on the plant it pollinates?
38. There is a plan to establish an 8000-kilometer-long strip of land across eight southeast Asian countries to rejoin fragments of tiger habitat. This is an example of a
39. The approach of conservation, where the whole ecosystem is protected, in order to conserve the biodiversity at all levels is called as ..... approach.
40. Likely to become endangered soon through all or part of its range
41. What is the focus of sustainable land use?
42. Which activity does not directly contribute to deforestation?
43. What is the definition of an invasive species?
44. Any natural resource available in limited amounts or replaced extremely slowly by natural processes is called:
45. Select the response that IS NOT an effect of the Amazon wildfires.
46. Sacred groves are ..... What is their role in conservation?
47. The process of raising organisms in controlled conditions, such as zoos and botanical gardens, is called (a) .
48. Which of the following is not a reason for protecting biodiversity?
49. According to IUCN (2004), total number of plant and animal species described so far is .....
50. Ecologists estimate the total number of species present in the world by:
51. What do we call a species that is likely to become endangered soon throughout all or part of its range?
52. Based on the passage, more than 70 per cent of all the species recorded are which group?
53. The Sikhote-Allin Mountains, and the Siberian tigers living on them, are separated from other mountain regions in which the tigers could live. The mountains are an example of a(n)
54. What is the role of reforestation in biodiversity conservation?
55. Biodiversity can affect the stability of ecosystems and the sustainability of populations.
56. A. More than 70 percent of all the species recorded are animals.B.Out of every 10 animals on this planet, 7 are insects.C.The number of fungi species in the world is more than the combined total of the species of fishes, amphibians, reptiles and mammals.D.Number of fishes is very less than that of mammals.
57. What is a wildlife corridor?
58. What are the effects of pollution on ecosystems and biodiversity?
59. An example of a renewable resource is
60. In the past hundred years, biodiversity around the world has ..... dramatically?
🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books