In situ strategies include-

  1. Biosphere reserve       B.  National park
  2. Wildlife sanctuaries     D.  Sacred forests / lakes

(a) A, B                

(b) A, B, C            

(c) B, C, D            

(d) A, B, C, D

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Ex situ strategies include:

  1. Botanical garden                       B. Zoos
  2. Seed / Pollen banks                   D. Gene bank and tissue culture

(a) A, B                 (b) A, B, C             (c) B, C, D             (d) A, B, C, D

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According to the concept of species area relations:

(a) The number of species in an area increases with the size of the area

(b) Larger species require larger habitat areas than do smaller species

(c) Most species within any given area are endemic

(d) The larger the area, the greater the extinction rate

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The exotic species, who introduced in India are:

(a) Lantana                                        (b) Water Hyacinth (Eicchornia)

(c) Parthenium                                   (d) All are correct

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Column-I                                          Column-II

  1. Silent valley                            (A)     Kaziranga
  2. Rhinoceros                              (B)     Bandipur
  3. Tiger project in Karnataka        (C)     In situ
  4. National Park                          (D)    Tropical evergreen forest

(a) I - B, II - A, III - D, IV - C             (b) I - D, II - A, III - B, IV - C

(c) I - A, II - C, III - B, IV - D             (d) I - B, II - A, III - C, IV - D

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Which one the following is false about Habitat loss and fragmentation?
(a) This is the most important cause driving animals and plants to extinction
(b) The most dramatic examples of habitat loss come from temperate rainforests
(c) Once covering more than 14% of the earth
(d) The Amazon rainforest harbouring probably millions of species is being cut and cleared for cultivating soya beans or for conversion to grassland for raising beef cattle

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Global species diversity and land area covered by India with respect to world is:

(a) 12%, 7%         (b) 2.4%, 9%        (c) 8.1%, 2.4%     (d) 4%, 3%

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The great German naturalist and geographer Alexander von Humboldt observed that within a region species richness increased with increasing explored area, but only up to a limit. In fact, relation between species richness and area for a wide variety of taxa (angiosperm plants, birds, bats, freshwater fishes) turns out to be a rectangular hyperbola. Now find out correct equations shown in the graph:

(a) I - S = CAZ; II - Log S = log C + Z log A

(b) I - Log S = log C + Z log A; II - S = CAZ

(c) I - S = CAZ + log C; II - Log S = log C + Z log A

(d) I - S = CAZ + log A; II - Log S = log C + Z log A

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Given below are three statements (A-E) each with one or two blanks. Select the option which correctly fills up the blanks.
Statements:
A. The tropics (between _____I_____) harbour more species than temperate and polar regions.
B. For example, Columbia situated near _____II_____, has about 1400 species of birds, while New York (41°N) has 105 species, Greenland (71°N) has about 56 species and India (in the equator region) has _____III_____ species.
C. The number of species of vascular plants in tropics is about _____IV_____ times more of that of temperate forests.
D. The _____V_____ rain forest in Brazil, South America has the greatest biodiversity on earth.
E. Since the origin of life on earth and evolution, there have been five episodes of mass extinction, but the current rate of extinction (6 mass extinction - due to human activities) is _____VI_____ times faster than them, due to human activities:
Options:
(a) I - 0°N to 90°S, II - equator, III - 1200, IV - five, V - Amazonian, VI - 100 - 1000
(b) I - 23.5°N to 23.5°S, II - equator, III - 10000, IV - ten, V - Amazonian, VI - 100 - 1000
(c) I - 23.5°N to 23.5°S, II - equator, III - 1200, IV - ten, V - Amazonian, VI - 100 -1000
(d) I - 23.5°N to 23.5°S, II - equator, III - 1200, IV - ten, V - Amazonian, VI - 100 - 10000

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A species facing extremely high risk of extinction in the immediate future is called:

(a) Vulnerable                                    (b) Endemic

(c) Critically Endangered                     (d) Extinct

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