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| Biodiversity |
Q.1 Beta (b) diversity refers to
diversity
(1) within a community
(2)
between communities
(3) between two ecozones
(4)
within a population.
Q.2 Which
of the following is the largest taxon among plants in terms of the number of
species?
(1) Algae (2)
Mosses
(3) Ferns (4)
Fungi
Q.3 India
is one of the twelve megadiversity countries with __ of genetic resources of
the world.
(1) 12.1% (2)
18.1%
(3) 38.1% (4)
8.1%
Q.4 An
ecologist uses the term biodiversity for the variety of species of
(1) all living plants
(2) all living animals
(3) both (1) and (2)
(4) (1), (2) and microbes also living in their natural
habitats.
Q.5 Which
one has the largest species variety in India?
(1) Wheat (2)
Maize
(3) Rice (4)
Potato
Q.6 Which
one of the following is not used for ex situ plant conservation ?
(1) Botanical Gardens
(2)
Field gene banks
(3) Seed banks
(4)
Shifting cultivation
Q.7 Which
of the following species is restricted to a specific area?
(1) Sibling species
(2)
Allopatric species
(3) Sympatric species
(4)
Endemic species
Q.8 Which
of the following represents maximum number of species among global biodiversity
?
(1) Mosses and Ferns
(2)
Algae
(3) Lichens
(4)
Fungi
Q.9 A
species facing extremely high risk of extinction in the immediate future is
called
(1) Vulnerable (2)
Endemic
(3) Critically Endangered (4) Extinct
Q.10 The
species diversity of plants on earth will be
(1) 2.4% (2)
22%
(3) 8.1% (4)
85%
Q.11 Which
one of the following has maximum genetic diversity in India?
(1) Mango (2)
Wheat
(3) Tea (4)
Teak
Q.12 The
distribution of species diversity on earth may be best described as
(1) it is
uniformally distributed
(2) it is highest
in tropics
(3) it is highest
in polar regions
(4) it is highest
in Southern hemisphere and lowest in Northern
hemisphere.
Q.13 Species
area relationship curve had been proposed by
(1) David Tilman
(2)
Edward
(3) Paul Ehrlich
(4)
Von Humboldt.
Q.14 Which
of the following statements is not true?
(1) The
biodiversity decreases with increasing latitude.
(2) The biodiversity decreases with increasing altitude.
(3) The fishes show greatest biodiversity among vertebrates.
(4) The biodiversity of bryophytes is greater than that of angiosperms.
Q.15 Which
of the following statements is correct?
(1) Species diversity, in general, increases from poles to the equator.
(2) Conventional taxonomic methods are equally suitable for higher plants and microorganisms.
(3) India’s share of global species diversity is about 18%.
(4) There are about 25000 known species of plants in India.
Q.16 Maximum
species diversity is seen in latitudinal range of
(1) 23.5° N to 66.5° N (2)
23.5° N to 23.5° S
(3) 23.5° S to 66.5° N (4)
66.5° N to 90° N
Q.17 The
relation between species richness and area is described on a logarithmic scale
by the equation __
[where
S = species richness, A = area, Z = slope of the line (regression coefficient),
C= Y-intercept].
(1) log S = log C – Z log A (2) log S = Z log A
(3) log S = log C + Z log A (4) log S = log C
Q.18 One
out of the following is not responsible for biodiversity loss.
(1) Alien species invasion (2) Co-extinction
(3) Ex-situ conservation (4) Deforestation
Q.19 Troublesome
American water weed found in India is
(1) Vallisneria (2)
Eichhornia
(3) Hydrilla (4)
Lemna
Q.20 The
worst threat to wildlife is by
(1) habitat destruction (2)
hunting
(3) overgrazing (4)
exotic species
Q.21 Read
the statements regarding a stable community and choose the correct option.
(i) Must be resistant to occasional disturbances.
(ii) Should show much variation in productivity from year to year.
(iii) Must be resistant to invasions by alien species.
(1) (i) and (ii) are correct
(2) (i), (ii) and (iii) are correct
(3) (i) only is correct
(4)
(i) and (iii) are correct
Q.22 Which of the following is an example of alien species invading a new ecosystem resulting in biodiversity losses?
(1) Introduction of Nile Perch into Lake Victoria in East Africa.
(2) Introduction of water hyacinth into India.
(3) Introduction of African catfish into Indian rivers.
(4) All of the above
Q.23 According to IUCN Red list, during the last two decades, the maximum increase in the number of threatened species is among
(1) amphibians (2)
reptiles
(3) birds (4)
mammals
Q.24 In
IUCN Red List (2004) documents, the extinction of 784 species includes
(1) 335 vertebrates, 360 invertebrates and 89 plants
(2) 337 vertebrates, 362 invertebrates and 88 plants
(3) 338 vertebrates, 359 invertebrates and 87 plants
(4) 340 vertebrates, 357 invertebrates and 87 plants.
Q.25 Cryopreservation of gametes of threatened species in viable and fertile condition can be referred to as :
(1) Advanced
ex-site conservation of biodiversity.
(2) In situ
conservation by sacred groves.
(3) In situ
cryo-conservation of biodiversity.
(4) In situ
conservation of biodiversity.
Q.26 Select the
incorrect statement.
(1) Species diversity increases as we move away from the equator towards
the poles.
(2) Stellar's sea cow and passenger pigeon got extinct due to over
exploitation by man.
(3) Lantana and Eichhornia are invasive weed species in India.
(4) The historic convention on biological diversity was held in 1992.
Q.27 Which
is referred to as 'Lungs of the Planet Earth'?
(1) Western ghats (2)
Lake Victoria
(3) Greenland (4)
Amazon rain forest
Q.28 Which
one of the following species is on the verge of extinction due to low
reproduction rate?
(1) Tiger (2)
Giant panda
(3) Elephant (4)
Deer
Q.29 One
of the following statements is incorrect with reference to biodiversity.
Identify it.
(1) The areas with very few plant and animal species (low species richness) with no threatened species are called biodiversity hotspots.
(2) Biodiversity increases from higher altitudes to lower altitudes.
(3) Biodiversity decreases from the equator to polar regions.
(4) Depletion in genetic diversity of crop plants is mainly due to the introduction of better varieties with high yield, disease resistance, etc.
Q.30 Which
one of the following is not an in situ conservation method?
(1) National parks
(2)
Wild life sanctuary
(3) Biosphere reserves
(4)
Zoological parks
Q.31 Rajaji
National Park is situated in
(1) Tamil Nadu (2)
Uttarakhand
(3) Assam (4)
Karnataka
Q.32 Endangered
plant species are conserved through
(1) tissue culture.
(2)
cryopreservation
(3) gene bank
(4)
all of these
Q.33 Which
of the following regions of our country are known for their rich biodiversity?
(1) Western Ghats and Eastern Himalayas
(2) Western Ghats and Deccan Plateau
(3) Eastern Himalayas and Gangetic Plain
(4) Trans Himalayas and Deccan Penninsula
Q.34 Find
the wrongly matched pair.
(1) Endemism - Species confined to a region and not
found anywhere else
(2) Hotspots – Western Ghats
(3) Sacred groves – Jaintia hills of Rajasthan
(4) Ex situ conservation– Zoological parks
Q.35 Which
of the following is not an ex-situ conservation?
(1) Cryopreservation
(2)
Seed bank
(3) Biosphere reserves
(4)
Botanical garden
Q.36 When
is the biodiversity day celebrated?
(1) 5th June (2)
I st July
(3) 22nd May (4)
8th March
Q.37 When both flora and fauna are conserved at the same place without any type of human intervention the conservation area is called
(1) Biosphere reserve
(2)
Wildlife sanctuary
(3) National Park
(4)
Zoological parks.
Q.38 Which
one of the following in an in situ method of biodiversity conservation?
(1) National park
(2)
Botanical garden
(3) Zoological garden
(4)
Scientific laboratory
Q.39 What
is the full form of MAB?
(1) Man and Biosphere
(2) Man and Biosphere Reserve
(3) Man and Biosphere Reserve Programme
(4) Man and Biosphere Programme
Q.40 Wildlife
Protection Act India was implemented in the year
(1) 1982 (2)
1988
(3) 1972 (4)
1970
Q.41 An
area is declared as "Hotspot" when
(1) it has 1500 or more endemic species and 75% of its original habitat
is lost.
(2) it has 1500 or more vertebrate species and 75% of its original
habitat is lost.
(3) it has more than 2000 species of plants
(4) most of the species inhabiting the area is facing the risk of
extinction.
Q.42 Which
of the following is correctly matched?
(1) Aerenchyma – Opuntia
(2) Age pyramid – Biome
(3) Parthenium hysterophorus – Threat to biodiversity
(4) Stratification – Population
Q.43 The
concept of Hotspots was first introduced by
(1) Mayer (2)
Simpson
(3) Myers (4)
David
Q.44 Red
list contains data or information on
(1) All economically important
plants
(2) Plants whose products are in international
trade
(3) Threatened species
(4) Marine vertebrates only
Q.45 The
objective of 'Ramsar Convention' was
(1) forest conservation
(2) wildlife conservation
(3) wetland conservation
(4)
biodiversity conservation
Answers:
(1) (2)
(2) (4)
(3) (4)
(4) (4)
(5) (3)
(6) (4)
(7) (4)
(8) (4)
(9) (3)
(10) (2)
(11) (1)
(12) (2)
(13) (4)
(14) (4)
(15) (1)
(16) (2)
(17) (3)
(18) (3)
(19) (2)
(20) (1)
(21) (4)
(22) (4)
(23) (1)
(24) (3)
(25) (1)
(26) (1)
(27) (4)
(28) (2)
(29) (1)
(30) (4)
(31) (2)
(32) (4)
(33) (1)
(34) (3)
(35) (3)
(36) (3)
(37) (3)
(38) (1)
(39) (4)
(40)
(3)
(41) (1)
(42) (3)
(43) (3)
(44)
(3)
(45) (3)
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Sexual reproduction in flowering plants - MCQs
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