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: Beetles

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: Genetic diversity

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: 7 million

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:  7 out of 10 animals

Question:

• a) A – Molluscs, B – Crustaceans
• b) A – Crustaceans, B – Molluscs
• c) A – Insects, B – Molluscs
• d) A – Molluscs, B – Insects

Answer: A – Molluscs, B – Crustaceans

Question: Which of the following group represents minimum species diversity among vertebrates?

• a) Mammals
• b) Reptiles
• c) Amphibians
• d) Birds

Answer: Mammals

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:  Angiosperms represent maximum number

Question: Conventional taxonomic methods are not suitable for identifying

• a) Microbial species
• b) Amphibian species
• c) Insect species
• d) Gymnospermic species

Answer: Microbial species

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: 2.4, 8.1

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: 2 : 1

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:  Only (B)

Question:

• a) log S = log C + Z log A
• b) log C = log S + Z log A
• c) log S = log A + Z log C
• d) log C = log A + S log A

Answer: log S = log C + Z log 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: 0.6 to 1.2

Question: Which of the following ecologist gave ‘rivet popper’ hypothesis?

• a) Paul Ehrlich
• b) Alexander Von Humboldt
• c) David Tillman
• d) Robert May

Answer:  Paul Ehrlich

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:  2000

Question:

• a) a(iii), b(ii), c(iv), d(i)
• b) a(iv), b(i), c(ii), d(iii)
• c) a(ii), b(iii), c(i), d(iv)
• d) a(iii), b(iv), c(ii), d(i)

Answer:  a(iii), b(ii), c(iv), d(i)

Question:

• a) A – 784, B – 500
• b) A – 654, B – 500
• c) A – 984, B – 300
• d) A – 500, B – 300

Answer: A – 784, B – 500

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:  Increased endemism

Question:

• a) A– 23, B– 31
• b) A– 31, B– 23
• c) A– 22, B– 31
• d) A– 32, B– 12

Answer: A– 23, B– 31

Question: The Evil Quartet represents the major causes of

• a) Biodiversity losses
• b) Soil pollution
• c) Inbreeding depression
• d) Air pollution

Answer:  Biodiversity losses

More Questions...............................

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: Habitat loss and fragmentation

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: Animals with migratory habits

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: Nile perch

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: Co-extinction

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: 25

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: Economic benefits

Question:  

• a) A – Amazon, B –20
• b) A – Temperate, B – 20
• c) A – Siberian, B – 30
• d) A – Alpine, B – 15

Answer: A – Amazon, B –20

Question: How many biodiversity hot spots have been identified in the world?

• a) 34
• b) 20
• c) 3
• d) None of these

Answer: 34

Question: Strict protection of biodiversity hotspots could reduce ongoing mass extinctions by almost

• a) 30%
• b) 15%
• c) 10%
• d) 5%

Answer: 30%

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:  Seed bank

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: Sacred groves – On-site conservation

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: Zoological park

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: Cryopreservation

Question: Select incorrect match

• a) Aravalli hills – Gujarat
• b) Khasi and Jaintia hills – Meghalaya
• c) Sarguja – Madhya Pradesh
• d) Western ghats – Karnataka, Maharashtra

Answer: Aravalli hills – Gujarat

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: 190

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:  Higher diversity increases uniformity

Question:  Regional diversity is also called

• a) Gamma diversity
• b) Ecosystem diversity
• c) Beta diversity
• d) Alpha diversity

Answer: Gamma diversity

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: Is generally calculated by dividing gamma diversity by alpha diversity

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: 2.4%, 8.1%

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:  Both (A) & (B) are correct

Question:

• a)

  

  

• b)

  

  

• c)

  

  

• d) None of thes e

Answer:

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: Greater environmental variations

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: Mountain peaks are more diverse than foot hills

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: Only (C) is incorrect

Question:

• a) A – 40,000, B – 3,000
• b) A – 3,000, B – 40,000
• c) A – 1500, B – 2,500
• d) A – 427, B – 378

Answer: A – 40,000, B – 3,000

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 stable community should show much variation in productivity from year to year

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: Poles to equator

Question:  Which sample area shows maximum diversity?

• a)

  

• b)

  

• c)

  

• d)

  

Answer:

Question: Threats to biodiversity comes from

• a) All of these
• b) Over exploitation
• c) Habitat loss
• d) Intensive agriculture

Answer: All of these

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: Inability to switch over to alternate food source

Question:  Number of red list categories prepared by WCU (IUCN) is

• a) 8
• b) 9
• c) 7
• d) 6

Answer: 8

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: Critically endangered

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:  Was introduced by Europeans in India

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: Rare plants and animals

Question: Protected areas are example of

• a) In-situ conservation
• b) Ex-situ conservation
• c) Cryopreservation
• d) Green Houses

Answer: In-situ conservation

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: Gir National Park

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 sanctuary

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: Biosphere reserve

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: Having traditional strategy for protection of biodiversity

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: Wildlife sanctuaries – 448