CBSE Class 12 Biology Biodiversity and Conservation MCQs

Question :  Which of the following countries has the highest biodiversity?

a) Brazil

b) South Africa

c) Russia

d) India

Answer :  Brazil

Question :  Which of the following is not a cause for loss of biodiversity?

a) Keeping animals in zoological parks

b) Invasion by alien species

c) Destruction of habitat

d) Over-exploitation of natural resources

Answer :  Keeping animals in zoological parks

Question :  Which of the following is not an invasive alien species in the Indian context?

a) Cynodon

b) Parthenium

c) Eichhornia

d) Lantana

Answer :  Cynodon

Question :  Where among the following will you find pitcher plant?

a) Rain forest of North-East India

b) Sunderbans

c) Thar Desert

d) Western Ghats

Answer :  Rain forest of North-East India

Question :  Which one of the following is not a major characteristic feature of biodiversity hot spots?

a) Destruction of habitat

b) Large number of exotic species

c) Abundance of endemic species

d) Large number of species

Answer :  Destruction of habitat

Question :

a) i-c, ii-a, iii-d, iv-b

b) i-c, ii-a, iii-b, iv-d

c) i-d, ii-c, iii-a, iv-b

d) i-a, ii-c, iii-b, iv-d

Answer :  i-c, ii-a, iii-d, iv-b

Question :  What is common to the following plants: Nepenthes, Psilotum, Rauwolfia and Aconitum?

a) All are prone to over exploitation

b) All are phylogenic link species

c) All are ornamental plants

d) All are exclusively present in the Eastern Himalayas

Answer :  All are prone to over exploitation

Question :  _______ has the maximum genetic diversity in India

a) Mango

b) Tea

c) Potato

d) Teak

Answer :  Mango

Question :  _________ is one of the most prevalent hotspots of biodiversity in India

a) Western Ghats

b) Himalayas

c) Ganges

d) None of these

Answer :  Western Ghats

Question :  Alexander Von Humbolt described for the first time

a) Species area relationships

b) Species area relationships

c) Species area relationships

d) None of these

Answer :  Species area relationships

Question :  The one-horned rhinoceros is specific to which of the following sanctuary

a) Kaziranga

b) Corbett park

c) Bandipur

d) Bhitar Kanika

Answer :  Kaziranga

Question :  Amongst the animal groups given below, which one has the highest percentage of endangered species?

a) Amphibians

b) Reptiles

c) Mammals

d) Insects

Answer :  Amphibians

Question :  Which one of the following is an endangered plant species of India?

a) All of the

b) Cycas beddonei

c) Santalum album (Sandal wood)

d) Rauwolfia serpentina

Answer :  All of the

Question :  What is common to Lantana, Eichhornia and African catfish?

a) All the species are neither threatened nor indigenous species of India.

b) All are mammals found in India.

c) All are key stone species

d) All are endangered species of India

Answer :  All the species are neither threatened nor indigenous species of India.

Question :  The extinction of passenger pigeon was due to

a) Over exploitation by humans

b) Non-availability of the food.

c) Bird flu virus infection

d) Increased number of predatory birds

Answer :  Over exploitation by humans

Question :  Which of the following statements is correct?

a) African catfish is not a threat to indigenous catfishes

b) Parthenium is an endemic species of our country.

c) Steller’s sea cow is an extinct animal.

d) Lantana is popularly known as carrot grass

Answer :  African catfish is not a threat to indigenous catfishes

Question :  Which of the following National Parks is home to the famous musk deer or hangul?

a) Dachigam National Park, Jammu & Kashmir

b) Eaglenest Wildlife Sanctuary, Arunachal Pradesh

c) Bandhavgarh National Park, Madhya Pradesh

d) None  of these

Answer :  Dachigam National Park, Jammu & Kashmir

Question :  Joint Forest Management Concept was introduced in India during

a) 1980 s

b) 1990 s

c) 1970 s

d) 1960 s

Answer :  1980 s

Question :  Which is an example of an ex-situ conservation

a) Seed bank

b) National park

c) Wildlife sanctuary

d) Sacred groves

Answer :  Seed bank

Question :  Which is not generally seen in biodiversity hotspots.

a) Lesser interspecific competition

b) Loss of diversity

c) Species richness

d) Species richness

Answer :  Lesser interspecific competition 

Question :  Among the ecosystem mentioned below, where can one find maximum biodiversity?

a) Coral reefs

b) Alpine meadows

c) Desert

d) Mangroves

Answer :  A

Question :  Which of the following forests is known as the ‘lungs of the planet Earth’?

a) Amazon rain forest

b) Tundra forest

c) Tiaga forest

d) Rain forests of North East India

Answer :  A 

Question :  The active chemical drug reserpine is obtained from

a) Rauwolfia

b) Datura

c) Atropa

d) Papaver

Answer :  A

Question :  Which of the following group of plants exhibit more species diversity?

a) Fungi

b) Bryophytes

c) Algae

d) Angiosperms

Answer :  A

Question :  Which of the below mentioned regions exhibit less seasonal variations?

a) Tropics

b) Temperates

c) Alpines

d) None of these

Answer :  A

Question :  The historic convention on Biological Diversity held in Rio de Janeiro in 1992 is known as:

a) The Earth Summit

b) G-16 Summit

c) CITES Convention

d) MAB Programme

Answer :  A

Question :  What is common to the techniques (i) in vitro fertilisation, (ii) Cryo preservation and (iii) tissue culture?

a) All are ex situ conservation methods

b) All are in situ conservation methods

c) All require ultra modern equipment and large space

d) All are methods of conservation of extinct organisms

Answer :  A

Question :  Which of the following is the most important cause of animals and plants being driven to extinction ?

a) Habitat loss and fragmentation

b) Co-extinctions

c) Alien species invasion

d) None of these

Answer :  A

Question :  Which is the National Aquatic Animal of India ?

a) River dolphin

b) Blue whale

c) Sea-horse

d) All of these

Answer :  A

Question :  Which is defined as an ecological state of a species being unique to a specific geographic location

a) Endemic species

b) Ecosystem

c) Ecosystem

d) None of these

Answer :  A

Answer :  A