Unseen Passage

For Class 4 to Class 12

Biodiversity and Conservation MCQ Class 12 Biology

Question. Which vertebrate group is more vulnerable to extinction?
(a) Birds
(b) Amphibians
(c) Mammals
(d) Fishes

Answer

B

Question. The ‘Evil Quartet’ of biodiversity loss, does not include
(a) habitat loss
(b) introduction of alien species
(c) o-exploitation
(d) hunting

Answer

D

Question. The taxa believed likely to join the endangered category in near future is called
(a) Rare
(b) Extinct
(c) Vulnerable
(d) Living fossil

Answer

C

Question. Which of the following is not currently a major cause of the global reduction in biodiversity?
(a) Overexploitation
(b) Global warming
(c) Habitat destruction
(d) Introduction of foreign predators and disease

Answer

B

Question. Which of the following characteristics would cause a country to be considered a high-priority region for conservation efforts?
(a) A high degree of endemism
(b) Having low species richness
(c) Having little natural habitat remaining
(d) All of the above

Answer

A

Question. The area where wild populations, traditional life styles and genetic resources are protected is called
(a) core zone
(b) buffer zone
(c) biosphere reserve
(d) manipulation zone

Answer

C

Question. Hotspots of biodiversity means
(a) areas of the earth that contain many endemic species.
(b) species serves as proxy for entire communities in particular area.
(c) species in particular niche/area.
(d) species diversity at particular area.

Answer

A

Question. Animals and plants are best protected in
(a) zoos
(b) botanical gardens
(c) sanctuaries
(d) national parks

Answer

D

Question. Which one of the following is an example of ex-situ conservation?
(a) National park
(b) Wildlife sanctuary
(c) Seed bank
(d) Sacred groves

Answer

C

Question. Which of the following phyla has largest number of species?
(a) Arthropoda
(b) Echinodermata
(c) Cephalochordata
(d) Annelida

Answer

A

Question. The impacts of loss of biodiversity include –
A. Decrease in plant production.
B. Lowered resistance to environmental perturbation
C. Increased variability in ecosystem processes like water use, pest / disease cycle, plants productivity.
D. None
(a) A, B
(b) A, B, C
(c) B, C
(d) D

Answer

B

Question. 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 snecies.
(c) Most species within any given area are endemic.
(d) The larger the area, the greater the extinction rate.

Answer

A

QuestionThe numbers of National Parks, Biosphere and Wildlife sanctuaries of India were:
(a) 90,14,448
(b) 158,62, 10
(c) 58, 412, 10
(d) 96, 412, 10

Answer

A

Question. Which species is most likely to-be positively selected by natural selection?
(a) One with a large gene pool
(b) One with a medium gene pool
(c) One with a small gene pool
(d) No correlation exists between gene pool and natural selection

Answer

A

Question. Which one of the following in a pair of Endangered species ?
(a) Garden lizard and maxican poppy
(b) Rhesus monkey and sal tree
(c) Indian peacock and cannot glass
(d) flornbill and Indian aconite

Answer

D

Question. An exotic species that is introduced to a new area, spreads rapidly and eliminates native species is called –
(a) an immigrant species
(b) an invasive species
(c) destructive species
(d) none

Answer

B

Question. Where was the World Summit on Sustainable Development held?
(a) South Africa
(b) U.S.A.
(c) South Korea
(d) U.K.

Answer

A

Question. Which of the following phyla has largest number of species?
(a) Arthropoda
(b) Echinodermata
(c) Cephalochordate
(d) Annelida

Answer

D

Question. An endemic species is
(a) one found in many different geographic areas.
(b) one found naturally in just one geographic area,
(c) one found only on islands.
(d) one that has been introduced to a new geographic area.

Answer

B

Question. The lion-tailed mankeys macaca silenus are found only in-
(a) Kaziranga
(b) Eastern ghats and Chennai
(c) Western ghats including travancore and Mysore
(d) Himalayas

Answer

C

Question. What is Biodiversity referred to as?
(a) species in a region
(b) genes & species in a region
(c) Genetic, species & ecological diversity in a region
(d) Genes and species in an ecosystem

Answer

C

Question. What are the total number of hot spots present in the world?
(a) 25
(b) 29
(c) 34
(d) 39

Answer

B

Question. Identify the odd combination of the habitat and the particular animal concerned.
(a) Sunderbans______ Bergal tiger
(b) Periyar______Elephant
(c) Ran of Kutch______ will Ass
(d) Dachigam national park______Snao leopard

Answer

D

Question. Which of these statements is true?
(a) Biodiversity tends to increase as you get closer to the equator
(b) Tropical regions of Earth contain very few of the world’s land species.
(c) Coral reefs tend to be less biologically diverse than temperate deciduous forests.
(d) Cold climates have greater amounts of biodiversity than warm climates.

Answer

A

Question. What is the approximate percentage of the earth covered by terrestrial hot spots?
(a) 1.5% (less than 2%)
(b) 2.5%
(c) 3.5%
(d) 4.5%

Answer

A

Question. What is the decreasing order of number of animal species, as far as India is concerned?
(a) Mammals, Aves, Reptiles, Amphibia
(b) Aves, Reptiles, Mammals, Amphibia
(c) Mammals, Reptiles, Amphibia, Aves
(d) Reptiles, Amphibia, Mammals, Aves

Answer

B

Question. Most large whale species have been driven to the brink of extinction. Which of the following is the most accepted explanation for this situation?
(a) Overexploitation
(b) habitat loss
(c) pollution”
(d) competition from introduced species

Answer

A

Question. Biosphere reserves differ from national packs and wild life sanctuaries because in the former-
(a) Human beings are not allowed to enter
(b) People are an integral part of the system
(c) Plants are paid greater attention than the animals
(d) Living organisms are groupht from all over the world and preserved for posterity

Answer

B

Question. Which one of the following are two hot spots of biodiversity in India?
(a) Western ghats & North eastern Himalayas
(b) Deccan and Western Ghats
(c) Himalayan and Deccan Plateau
(d) Western Ghats and Gangetic Plains

Answer

A

Question. Which of the following is incorrectly matched?
(a) alpha diversity – number of species in a given habitat,
(b) genetic diversity – variation of genes within species
(c) beta-diversity – diversity of habitat in the whole region
(d) species diversify-product of species richness & evenness

Answer

C

Question. Which of the following is NOT a benefit.that humans receive from a biologically diverse world?
(a) source of medicine
(b) source of water
(c) source of economic gains
(d) source of food

Answer

B

Question. Which is not a v d reason for the species-area relationship?
(a) larger areas have higher z values
(b) extinction rates are greater on small islands
(c) larger “core” areas .
(d) larger areas contain more habitats

Answer

A

Question. According to conservation biologists, how much of the Earth’s land surface should be strictly protected?
(a) 25%
(b) 5%
(c) 50%
(d) 10%

Answer

D

Question. As estimated by Robert May, what is the total number of species present on earth?
(a) 3 million
(b) 5 million
(c) 7 million
(d) 9 million

Answer

C

Question. The major extinct from India in-
(a) Cannibalism
(b) Felling tress
(c) Habitat destruction
(d) None of these

Answer

C

Question. In island biogeography, c =
(a) number of species
(b) a constant measuring the slope of the line
(c) a constant measuring number of species per unit area of habitat
(d) area

Answer

C

Question. Threats to biodiversity comes from –
(a) habitat loss
(b) Over exploitation
(c) Intensive agriculture
(d) AII

Answer

D

Question. Which of the following was the first National Park of India?
(a) Corbett
(b) Nanda Devi
(c) Kaziranga
(d) Jaldapara

Answer

A

Question. Idri Idri is found is-
(a) Australia
(b) Madagascar
(c) Mauritius
(d) Tasmania

Answer

B

Question. In which part of biosphere reserves human settlement is permissible?
(a) Buffer Zone
(b) Transition Zone
(c) Core Zone
(d) Settlement not allowed

Answer

B

Question. Historically, island species have tended to become extinct faster than species living on a mainland. Which of the following reasons can not be used to explain this phenomenon?
(a) Island species have often evolved in the absence of predators and have no natural avoidance strategies.
(b) Humans have introduced diseases and competitors to islands, which negatively impacts island populations.
(c) Island populations are-usually smaller than mainland populations.
(d) Island populations are usually less fit than mainland populations.

Answer

D

Question. Why are conservationists calling for immediate, and often expensive, action on behalf of endangered species an habitats?
(a) Biodiversity is beneficial to humans.
(b) Man has brought on climate change.
(c) Extinction is an unnatural process.
(d) It would be more costly, financially, if we did not act.

Answer

A

Question. When the last member of a particular species dies, the species is said to be ______.
(a) isolated
(b) endangered
(c) diversified
(d) extinct

Answer

D

Question. Which of the following is NOT associated with small populations?
(a) Homozygosity can increase the fitness of individuals.
(b) Some degree of inbreeding becomes inevitable.
(c) Genetic drift can quickly eliminate most alleles, leaving individuals extremely similar genetically. ‘ ‘
(d) Problems arise when a!!e!ic diversity is reduced.

Answer

A

Question. Breeding place of Flamingo (Hansawar) in India is-
(a) Sambhar lake
(b) Chilka lake
(c) Runn of Kutch
(d) Ghana vihar

Answer

B

Question. Conservation hotspots are best described as
(a) areas with large numbers of endemic species that are disappearing rapidly.
(b) areas where people are particularly active supporters of biological diversity.
(c) islands that are experiencing high rates of extinction.
(d) areas where native species ate being replaced with introduced species.

Answer

A

Question. The ____ encourages the division of protected areas into zones with different purposes and levels of human impact.
(a) Man and Biosphere Program (MAB)
(b) Biosphere Reserve
(c) ChipkoAndolan Movement
(d) IUCN world conservation strategy

Answer

A

Question. Wild life is destroyed mostly by-
(a) Lack of proper care
(b) Mass scale Hurting
(c) Destruction of natural Habitats
(d) Natural calamity

Answer

C

Question. Troublesome American water used weed found in India is-
(a) Trapa
(b) Cyperus
(c) Typha
(d) Eichormia

Answer

D

Question. Which of the following countries has the most deforestation today?
(a) Brazil
(b) ‘United States
(c) Japan
(d) none of the above

Answer

A

Question. A keystone species is one that
(a) has a higher likelihood of extinction than a nonkeystone species.
(b) exerts a strong influence on an ecosystem.
(c) causes other species to become extinct.
(d) has a weak influence on an ecosystem.

Answer

B

Question. Species diversity _____ as we move away from the equator towards the poles.
(a) Increases
(b) Decreases
(c) First increases then decreases
(d) First decreases then increases

Answer

A

Question. What is the affect of species diversity, as one moves from high to low altitudes.
(a) Increases
(b) Decreases
(c) First increases then decreases
(d) First decreases then increases

Answer

A

Question. Which of the foiiowing is not an example of in-situ conservation?
(a) Biosphere Reserves
(b) National Parks
(c) Wildlife Sanctuaries
(d) Zoos and botanical gardens

Answer

D

Question. What is the difference between; a threatened species and an endangered species ?
(a) A threatened species is already extinct. An endangered species means that the population’s numbers have increased greatly over the last 5 years.
(b) A threatened species and an endangered species are the same thing.
(c) A threatened species means that the population is likely to become endangered. An endangered species is already extinct.
(d) A threatened species means that the population is likely to become endangered. An endangered species has population numbers so low that it is likely to become extinct.

Answer

D

Question. How much of the Earth’s land surface have humans disturbed or degraded?
(a) 60-70%
(b) 5-10%
(c) 30-40%
(d) 10-20%

Answer

A

Question. Ex situ strategies include –
A. Botanical garden
B. Zoos
C. 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

Answer

D

Question. A. More than 70 percent of all the species recorded are animals.
B. Out of every 10 animals on this planet, 7 are insects.
C. The number of fungi species in the world is more than the combined total of the species of fishes, amphibians, reptiles and mammals.
D. Number of fishes is very less than that of mammals.
(a) All correct .
(b) All incorrect
(c) A, B and C are correct
(d) Only D is correct

Answer

C

Question. The term “The Evil Quartet” is related with
(a) four major causes of forest loss
(b) four major causes of population explosion
(c) four major causes of air pollution
(d) four major causes ef biodiversity losses.

Answer

D

Question. Which species is most likely to-be positively selected by natural selection?
(a) One with a large gene pool
(b) One with a medium gene pool
(c) One with a small gene pool
(d) No correlation exists between gene pool and natural selection

Answer

A

MCQ on Biodiversity and Conservation Class 12 Free PDF

Related Posts

error: Content is protected !!