NEET Biology Biodiversity and Its Conservation MCQs Set C

Question. Which of the following taxon shows maximum species diversity?
(a) Beetles
(b) Fishes
(c) Ants
(d) Orchids

Answer: A

Question. The variation shown by the medicinal plant Rauwolfia vomitoria growing in different Himalayan ranges represents
(a) Genetic diversity
(b) Species diversity
(c) Ecological diversity
(d) Community diversity

Answer: A

Question. More conservative and scientifically sound estimate made by Robert May places the global species diversity at about
(a) 7 million
(b) 1.7 million
(c) 17 million
(d) 1.5 million

Answer: A

Question. Insects are the most numerous with estimate of
(a) 7 out of 10 animals
(b) 7 out of 10 invertebrates
(c) 4 out of 10 invertebrates
(d) 4 out of 10 animals

Answer: A

Question. Which of the following group represents minimum species diversity among vertebrates?
(a) Mammals
(b) Reptiles
(c) Amphibians
(d) Birds

Answer: A

Question. In global biodiversity of plants, the
(a) Angiosperms represent maximum number
(b) Fungi represent the minimum number
(c) Algae represent the minimum number
(d) Mosses represent the maximum number

Answer: A

Question. Conventional taxonomic methods are not suitable for identifying
(a) Microbial species
(b) Amphibian species
(c) Insect species
(d) Gymnospermic species

Answer: A

Question. India has ____% of the world’s land area, its share of the global species diversity is an impressive ____%
(a) 2.4, 8.1
(b) 12, 22
(c) 22, 12
(d) 8.1, 2.4

Answer: A

Question. What is the approximate ratio of animals and plants species in our country?
(a) 2 : 1
(b) 1 : 3
(c) 1 : 2
(d) 3 : 1

Answer: A

Question.  Select incorrect statement w.r.t. greater biological diversity in tropics
(A) Tropical latitudes have remained relatively undisturbed for millions of years and thus had a long evolutionary time for species diversification.
(B) Tropical environments are more seasonal and less predictable than temperates.
(C) There is more solar energy available which contributes to higher productivity
(a) Only (B)
(b) (B) & (C)
(c) Only (A)
(d) (A) & (B)

Answer: A

Question. Species-area relationships among very large areas like the entire continents the Z values in the range of
(a) 0.6 to 1.2
(b) 0.3 to 0.6
(c) 1.15
(d) 0.1 to 0.2

Answer: A

Question. Which of the following ecologist gave ‘rivet popper’ hypothesis?
(a) Paul Ehrlich
(b) Alexander Von Humboldt
(c) David Tillman
(d) Robert May

Answer: A

Question. Colonisation of tropical pacific Islands by humans have resulted in extinction of more than _______ species of native birds.
(a) 2000
(b) 7000
(c) 784
(d) 15000

Answer: A

Question. Loss of biodiversity in a region may lead to all of the following, except
(a) Increased endemism
(b) Increased variability in certain ecosystem processes
(c) Lowered resistance to environment perturbations
(d) Decline in plant production

Answer: A

Question. The Evil Quartet represents the major causes of
(a) Biodiversity losses
(b) Soil pollution
(c) Inbreeding depression
(d) Air pollution

Answer: A

Question.  Which of the following is the most important cause driving animals and plants to extinction?
(a) Habitat loss and fragmentation
(b) Alien species invasions
(c) Co-extinctions
(d) Over-exploitation

Answer: A

Question. Which of the following organisms are badly affected when large habitats are broken up into small fragments due to various human activities?
(a) Animals with migratory habits
(b) Mammals requiring small territories
(c) Planktons showing diapause
(d) Birds requiring small territories

Answer: A

Question.  Extinction of more than 200 species of cichlid fish in lake Victoria was due to introduction of
(a) Nile perch
(b) Clarias gariepinus
(c)   Lantana
(d) African catfish

Answer: A

Question. When a host fish species becomes extinct, its unique assemblage of parasites also meets the same fate. It is an example of
(a) Co-extinction
(b) Over-exploitation
(c) Alien species invasion
(d) Habitat loss

Answer: A

Question. More than _______% of the drugs currently sold in the market worldwide are derived from plants
(a) 25
(b) 90
(c) 55
(d) 70

Answer: A

Question. Bio-prospecting is exploring molecular, genetic and species level diversity for products of
(a) Economic benefits
(b) Ecosystem services
(c) Aesthetic pleasures
(d) None of these

Answer: A

Question. How many biodiversity hot spots have been identified in the world?
(a) 34
(b) 20
(c) 3
(d) None of these

Answer: A

Question. Strict protection of biodiversity hotspots could reduce ongoing mass extinctions by almost
(a) 30%
(b) 15%
(c) 10%
(d) 5%

Answer: A

Question. “When we conserve and protect the whole ecosystem, its biodiversity at all levels is protected.” This approach includes all of the following, except
(a) Seed bank
(b) National parks
(c) Sanctuaries
(d) Biosphere reserves

Answer: A

Question. Mark the correct match
(a) Sacred groves – On-site conservation
(b) Wildlife sanctuaries in India – 90
(c) Western Ghat – Rajasthan and M.P.
(d) National park in India – 448

Answer: A

Question. In which of the following method threatened animals are taken out from natural habitat and placed in special setting?
(a) Zoological park
(b) Biosphere reserves
(c) Botanical garden
(d) None of these

Answer: A

Question. Gametes of threatened species can be preserved in viable and fertile condition for long periods using
(a) Cryopreservation
(b) Botanical gardens
(c) On-site conservation
(d) Wildlife safari parks

Answer: A

Question. Select incorrect match
(a) Aravalli hills – Gujarat
(b) Khasi and Jaintia hills – Meghalaya
(c) Sarguja – Madhya Pradesh
(d) Western ghats – Karnataka, Maharashtra

Answer: A

Question. How many countries pledged their commitment to achieve by 2010, a significant reduction in the current rate of biodiversity loss at global, regional and local levels in the World Summit held in 2002?
(a) 190
(b) 195
(c) 121
(d) 119

Answer: A

Question. Which is not true regarding genetic diversity?
(a) Higher diversity increases uniformity
(b) Ecotype formation depends upon it
(c) It is also basis of speciation
(d) It enables a population to adapt to its environment

Answer: A

Question.  Regional diversity is also called
(a) Gamma diversity
(b) Ecosystem diversity
(c) Beta diversity
(d) Alpha diversity

Answer: A

Question. Beta diversity
(a) Is generally calculated by dividing gamma diversity by alpha diversity
(b) Is within community diversity
(c) Is also called regional diversity
(d) Is local diversity

Answer: A

Question. India covers the world land area of _____ and contributes the global diversity of _______.
(a) 2.4%, 8.1%
(b) 8%, 4%
(c) 8.1%, 2.4
(d) 4%, 8%

Answer: A

Question. Read the following statements :
(A) India has a greater ecosystem diversity than Norway.
(B) According to the IUCN (2004), the total number of plant and animal species described so far is slightly more than 15 millions
(a) Both (A) & (B) are correct
(b) Both (A) & (B) are incorrect
(c) Only (B) is correct
(d) Only (A) is correct

Answer: A

Question. Which is not a reason of maximum diversity in tropics?
(a) Greater environmental variations
(b) Evolutionary older zone
(c) Higher pest pressure
(d) High rate of out crossing

Answer: A

Question. Select an incorrect statement w.r.t. biodiversity
(a) Mountain peaks are more diverse than foot hills
(b) Valley’s are more diverse than mountain peaks
(c) Shade sides are more diverse than sun sides of mountains
(d) Western ghats are more diverse than eastern ghats

Answer: A

Question.  Read the following statements:
(A) Tropics harbour more species than temperate or polar areas.
(B) Colombia located near the equator has nearly 1400 species of birds.
(C) India has less than 105 species of birds
(a) Only (C) is incorrect
(b) (B) & (C) are incorrect
(c) (A) & (B) are incorrect
(d) (A) & (C) are incorrect

Answer: A

Question. Which of the following statement is wrong?
(a) A stable community should show much variation in productivity from year to year
(b) According to Tillman’s long term ecosystem experiments increased diversity contributed to higher productivity
(c) Stable community must be resistant to occasional disturbances
(d) Rich biodiversity is essential for ecosystem health but imperative for the very survival of the human race on this planet

Answer: A

Question. Degree of biodiversity increases from
(a) Poles to equator
(b) Low altitude to high altitude
(c) Equator to poles
(d) Low latitude to high latitude

Answer: A

Question. Threats to biodiversity comes from
(a) All of these
(b) Over exploitation
(c) Habitat loss
(d) Intensive agriculture

Answer: A

Question. Population characteristic of a species susceptible to extinction is
(a) Inability to switch over to alternate food source
(b) Low trophic level in food chain
(c) Wide range of distribution
(d) High biotic potential

Answer: A

Question.  Number of red list categories prepared by WCU (IUCN) is
(a) 8
(b) 9
(c) 7
(d) 6

Answer: A

Question. According to IUCN, when a taxon is facing an extremely high risk of extinction in the immediate future, it is
(a) Critically endangered
(b) Endangered
(c) Vulnerable
(d) None of these

Answer: A

Question. Exotic species Eichhornia crassipes
(a) Was introduced by Europeans in India
(b) Was introduced in Lake Victoria of South Africa
(c) Was introduced in India accidentally
(d) Is a straggling shrub of tropical America

Answer: A

Question. Silent valley of Kerala is being preserved because it has
(a) Rare plants and animals
(b) Costly timber plants
(c) Only natural forest of India
(d) Recreational value

Answer: A

Question. Protected areas are example of
(a) In-situ conservation
(b) Ex-situ conservation
(c) Cryopreservation
(d) Green Houses

Answer: A

Question. The Indian lion is the most important protected species in
(a) Gir National Park
(b) Corbett National Park
(c) Bandipur National Park
(d) Kaziranga National Park

Answer: A

Question.  Government of India has provided the private ownership rights in
(a) A sanctuary
(b) Zoo
(c) A national park
(d) A biosphere reserve

Answer: A

Question. Wild populations of plants and animals and traditional life styles of tribals are protected in
(a) Biosphere reserve
(b) Sanctuary
(c) National Park
(d) None of these

Answer: A

Question. Which is not a criteria used for determining hot spots?
(a) Having traditional strategy for protection of biodiversity
(b) Degree of exploitation
(c) Degree of habitat destruction
(d) Number of endemic species

Answer: A

Question. Which of the following is correct match w.r.t. biodiversity rich region?
(a) Wildlife sanctuaries – 448
(b) Zoological parks – 25
(c) National parks – 95
(d) Biosphere reserves – 24

Answer: A