Unit 3: Biodiversity and conservation - Practice Quiz

1 What does biodiversity mean?

2 Which of the following is a level of biological diversity?

3 Genetic diversity refers to differences in genes among:

4 Species diversity includes the variety of species and their:

5 Which example shows ecosystem diversity?

6 Why is biodiversity important for ecosystems?

7 Which is an example of an ecosystem service?

8 The ecological value of biodiversity is related to its role in:

9 Which is an example of the economic value of biodiversity?

10 The beauty of forests, flowers, and wildlife represents the _____ value of biodiversity.

11 Biodiversity has informational value because organisms can provide knowledge for:

12 A biodiversity hotspot is an area with many unique species and:

13 What is habitat loss?

14 Poaching means:

15 An invasive species is one that:

16 Which situation is an example of human-wildlife conflict?

17 A species is called extinct when:

18 An endangered species is one that has:

19 In-situ conservation protects species:

20 Which is an example of ex-situ conservation?

21 A forest contains many species, several varieties within each species, and different habitat types. Which term best describes this overall variation?

22 Two rice fields contain the same number of species, but one field has many genetically distinct rice varieties. Which level of diversity mainly differs?

23 Why can genetically diverse populations be more resilient to a new disease?

24 Forest A and Forest B each contain 20 species. Forest A has individuals distributed more evenly among its species. Which forest has greater species diversity?

25 A conservation plan protects a mangrove, grassland, desert, and mountain lake within one region. Which level of biodiversity is mainly being represented?

26 A wetland reduces flooding by storing excess rainwater. This function is best classified as which ecosystem service?

27 Removing a predator causes herbivore numbers to rise and vegetation to decline. This example demonstrates biodiversity's:

28 A wild plant is investigated because it may contain a compound useful for developing a medicine. Which value of biodiversity is most directly involved?

29 A community protects a forest because it is linked to traditional ceremonies and cultural identity. This reflects biodiversity's:

30 Visitors support the protection of a landscape mainly because of its scenic beauty and wildlife-viewing opportunities. Which value is emphasized?

31 Scientists study how desert plants conserve water to design more efficient crops. This use of biodiversity illustrates:

32 A region is prioritized as a biodiversity hotspot because it has many endemic species and faces severe habitat loss. Which feature is essential to hotspot identification?

33 A highway divides a continuous forest into small isolated patches. Besides reducing area, this change most directly increases:

34 If illegal hunting selectively removes the largest male elephants, which long-term effect is most likely?

35 An introduced plant spreads rapidly, reduces native plant abundance, and changes soil conditions. It is best described as:

36 After natural prey declines, leopards begin killing livestock near villages. Which measure addresses the underlying cause most directly?

37 A species has a rapidly declining population and faces a high risk of extinction in the near future. It should be treated as a:

38 A species has suffered a major population decline and faces a very high risk of extinction in the wild. Which category best applies?

39 Which species would receive the highest priority under an EDGE approach?

40 A wildlife sanctuary protects a tiger population within its natural forest habitat. This is an example of:

41 A landscape contains several closely related tree populations, many species, and multiple habitat types. Which statement most accurately applies the concept of biodiversity to this landscape?

42 Two wetlands contain the same number of species and identical species abundances, but one wetland has genetically distinct populations of a dominant fish. Which conclusion is best supported?

43 A disease affects a crop variety cultivated from a single clonal ancestor, while a genetically diverse traditional landrace survives. Which mechanism best explains the difference?

44 Community X and Community Y each contain ten species. In X, one species represents 90% of individuals; in Y, all species are similarly abundant. Which interpretation is most appropriate?

45 A conservation plan protects many species in a botanical garden but replaces a mosaic of wetlands, grasslands, and forest with one managed habitat. Which level remains most inadequately conserved?

46 A mangrove is cleared for a shrimp farm, producing market income but increasing storm damage, salinity intrusion, and nursery-fish losses. Which assessment best captures the decision?

47 Why can the disappearance of a seemingly rare and economically unused predator still reduce ecological value?

48 A wild plant has no current commercial use, but its genes later help develop drought-tolerant crops. Which biodiversity value was initially overlooked?

49 Which combination best characterizes a biodiversity hotspot in the conservation-priority sense?

50 A road divides a continuous forest into small patches while the total forest area declines only slightly. Which additional effect most directly increases extinction risk?

51 A poached species remains locally common because of high reproduction, but its largest adults are selectively removed. Why can conservation concern still be justified?

52 An introduced plant spreads rapidly after native herbivores fail to consume it and local plants decline. Which inference is most defensible?

53 A corridor restoration increases elephant movement between fragmented forests but also increases crop damage in nearby villages. Which response best reflects conflict-sensitive conservation?

54 A species has undergone a major population decline and its remaining populations are small, fragmented, and exposed to continuing threats. Which classification is most consistent with this evidence?

55 A widespread species has experienced a substantial decline and is projected to become threatened if current pressures continue, but it does not yet meet the higher-risk thresholds. Which category fits best?

56 Why might an evolutionarily distinct amphibian with no close living relatives receive high conservation priority even if another species has a larger population decline?

57 Which proposal is most clearly an in-situ conservation strategy for a threatened wild orchid?

58 A species has only one surviving wild population and is vulnerable to a catastrophic disease outbreak. Which action is most directly ex situ?

59 A conservation survey compares the Himalaya, Western Ghats, and Deccan Peninsula as distinct large-scale ecological regions. What is the principal rationale for such zonation?

60 India’s recognition as a megadiversity nation is best explained by which combination?