1) Read the following statements and find out the incorrect statement
1) Rauwolfia vomitoria is a medicinal plant.
2) Rauwolfia vomitoria is growing in different Himalayan ranges
3) India has more than 50,000 genetically different strains of rice
4) In India 10,000 varieties of mango are found
2) The genetic variation show by auwolfia might be in terms of
1) Potency of reserpine
2) Concentration of reserpine
3) Fragrance of reserpine
4) Both 1&2
3) Deserts, rain forests, mangroves , coral reefs, wetlands, estuaries and alpine meadows can be employed to describe the
1) Genetic diversity
2) Species diversity
3) Ecological diversity
4) All of the above
4) About the total number of species present on earth , a more conservative and scientifically sound estimate made by
1) Robert May
2) Robert Costanza
3) Alexander Von Humboldt
4) Both 1&2
5) Match the columns I & II and choose the correct combination from the options given
Column I Column II
Organism Number of species
a) Beetles 1) 20,000
b) Ants 2) 28,000
c) Orchids 3) 30,000
d) Fishes 4) 3,00,000
1) a-1,b- 3,c-2,d- 4
2) a-4,b- 2,c-1,d- 3
3) a-4,b- 1,c-2,d- 2
4) a-4,b- 1,c-1,d- 2
6) Considering that an overwhelmingly large proportion of the species are waiting to be discovered in tropics, biologists, make a statistical comparison of the temperate-tropical species richness of an exhaustively studied group of
1) Insects
2) Amphibians
3) Molluscs
4) Fern & allies
7) Match the columns I’&II and choose the correct combination from the options given
Column I Column II
Organism Number in India
a) Plants 1) 1,000 varieties
b) Animals 2) 50,000 strains
c) Mango 3) 45,000 species
d) Rice 4) 90,000 species
1) c-1,d- 2,a-3,b- 4
2) b-4,c- 2,d-1,a- 3
3) a-4,c- 1,b-3,d- 2
4) a-4,b- 3,c-2,d- 1
8) The greatest biodiversity on Earth is found in
1) tropical Amazonian rain forest in South Africa
2) Temperate Amazonian rain forest in North America
3) Tropical Amazonian rain forest in South America
4) Temperate Amazonian rain forest in South America
9) Match the columns I&II and choose the correct combination from the options given
Column I Column II
Locality Number of bird species
a) India 1) 56
b) Amazon rain forest 2) 105
c) Greenland 3) 1200
d) Colombia 4) 1300
e) New York 5) 1400
1) d-1,c- 2,a-3,e- 4,b-5
2) b-4,e- 2,c-1,d- 3,a-5
3) a-4,e- 1,c-3,d- 2,b-5
4) a-3,b- 5,c-1,d- 2,e-4
1) British zoologist and geographer David Tilman
2) German botanist and geographer Alexander von Humboldt
3) German naturalist& geographer Alexander von Humboldt
4) British naturalist&geographer Alexander von Hubloldt
11) The observation of the species area relationship was given by Humboldt after his pioneering and extensive explorations in the wilderness of
1) South American jungles
2) North American jungles
3) South African jungles
4) East African jungles
12) The relation between species richness and area for a wide variety of taxa (angiosperm plants, birds, bats, freshwater fishes) turns out be a
1) Rectangular parabola
2) Rectangular hyperbola
3) Straight line / linear
4) Sigmoid
13) Match the columns I& II and choose the correct combination from the options given
Column I Column II
Organism Number of species in Amazon rain forest
a) Plants 1) 1, 25,000
b) Invertebrates 2) 2,00,000
c) Vertebrates 3) 20,00,000
d) Insects species waiting to be 4) 40,000 discovered
5) 5532
1) d-1,b- 2,c-3,e- 4
2) b-1,c- 2,a-3,d- 4
3) d-1,a- 2,e-3,b- 4
4) d-1,a- 2,e-3,c- 4
14) The species area relationship on alogarithmic scale (log-log scale) is
1) Rectangular parabola
2) Rectangular hyperbola
3) Straight line/ linear
4) Sigmoid
15) In the plot of the species area relationship the x & y axis represents x-axis y-axis
1) Species richness Area
2) Area Species richness
3) Slope of the line Intercept
4) Intercept Slope of the line
16) What does the mean of stability in context to a biological community?
1) A stable community should not show too much variation in productivity from year to year
2) A stable community must be either resistant or resilience to occasional disturbances (natural or man-made)
3) A stable community must be resistant to invasion by alien species
4) All of the above
17) David Tilman’s long-term ecosystem experiments using outdoor plots showed that
1) Increased diversity contributed to lower productivity
2) Increased diversity contributed to higher productivity
3) Increased diversity have no impact on productivity
4) Increased diversity have unpredictable impact on productivity
18) The rich biodiversity of the earth is
1) Essential for ecosystem health
2) Imperative for the very survival of the human race on this planet
3) Not essential for ecosystem health
4) Both 1& 2
19) In a comparative analogy between the airplane and ecosystem (the ‘rivet popper hypothesis) used by Stanford ecologist Paul Ehrlich, find out the correct matching
Column I Column II
a) Rivets 1) Ecosystem
b) Airplane 2) Species
c) Popping a rivet 3) Key species
d) Rivets on the wings 4) Proper functioning of ecosystem
e) Flight safety 5) A species to become extinct
1) a-1,b- 2,c-3,d- 4,e-5
2) a-2,b- 1,c-4,d- 5,e-3
3) a-2,b- 1,c-5,d- 4,e-3
4) a-2,b- 1,c-5,d- 3,e-4
20) The loss of biodiversity in a region may lead to
1) Decline in plant production
2) Lowered resistance to environmental perturbations such as drought
3) Increased variability in certain ecosystem processes such as plant productivity, water use and pest and disease cycle
4) All of the above
21) When a large habitats are broken up into small fragments due to various uman activities, which of following organisms are badly affected
1) Mammals requiring large territories
2) birds requiring large territories
3) Certain animals with migratory habits
4) All of the above
22) Match the columns I & II and choose the correct combination from the options given
Column I Column II
Taxonomic Threat of group Extinction
a) Birds 1) 12 per cent
b) Amphibians 2) 23 percent
c) Mammals 3) 31 percent
d) Gymnosperms 4) 32 percent
1) a-1,b- 2,c-3,d- 4
2) b-1,a- 2,c-4,d- 3
3) a-1,c- 2,b-4,d- 3
4) a-1,b- 3,c-2,d- 4
23) The Amazon rain forest harbouring probable millions of species is being cut and cleared for
1) Cultivating soya beans
2) Conservation to grasslands for raising beef cattle
3) Playing cricket/ IPL
4) Both 1&2
24) Which of the following is referred as Evil Quartet With reference to loss of biodiversity ?
1) Species richness, extinctions, deforestation, erosion
2) Habitat loss and fragmentation, over-exploitation, alien species invasion, co-extinction
3) Overexploitation, grazing decomposition, extinction
4) Habitat destruction, co-extinction, deforestation, species richness
5) Grazing, erosion, deforestation, species richness
25) The organization which has published ‘Red Data Book is
1) International Union for Conservation of Nature and Natural Resource
2) National Environmental Engineering Research Institute
3) National Wildlife Action Plan
4)Convention on International Trade in Endangered Species of Wild Fauna & Flora
ANSWERS :
1) 4 2)4 3)3 4)1 5)4
6) 1 7) 1 8) 1 9)4 10) 3
11)1 12)2 13)4 14)3 15)2
16)4 17)2 18)4 19)4 20)4
21)4 22)3 23)4 24)2 25)1
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