Students of class 12 Biology should refer to MCQ Questions Class 12 Biology Biodiversity and Conservation with answers provided here which is an important chapter in Class 12 Biology NCERT textbook. These MCQ for Class 12 Biology with Answers have been prepared based on the latest CBSE and NCERT syllabus and examination guidelines for Class 12 Biology. The following MCQs can help you to practice and get better marks in the upcoming class 12 Biology examination

Chapter 15 Biodiversity and Conservation MCQ with Answers Class 12 Biology

MCQ Questions Class 12 Biology Biodiversity and Conservation provided below have been prepared by expert teachers of grade 12. These objective questions with solutions are expected to come in the upcoming Standard 12 examinations. Learn the below provided MCQ questions to get better marks in examinations.

Question. Biodiversity describes the study of diversity
(a) below species level.
(b) at species level.
(c) at community level.
(d) at all levels of biological organization.

Question. Diversity between two communities is called
(a) alpha diversity
(b) beta diversity
(c) gamma diversity
(d) none of these

Question. Which one of the following pairs of geographical areas show maximum biodiversity in our country?
(a) Sunderbans and Rann of Kutch
(b) Eastern Ghats and West Bengal
(c) Eastern Himalaya and Western Ghats
(d) Kerala and Punjab

Question. According to IUCN 2004, the total number of plant and animal species described so far is slightly more than
(a) 5 million
(b) 7 million
(c) 1.5 million
(d) 0.5 million

Question. Exotic species
(a) are often endangered.
(b) usually increase biodiversity.
(c) often enhance the habitat for native species.
(d) usually reduce biodiversity.

Question. Alpha diversity is present
(a) within community.
(b) between community.
(c) ranges of communities.
(d) all of the above.

Question. Diversity between two communities is called
(a) alpha diversity
(b) beta diversity
(c) gamma diversity
(d) none of these

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

Question. Which one of the following is not a major characteristic feature of biodiversity hot spots?
(a) Large number of species
(b) Abundance of endemic species
(c) Mostly located in the tropics
(d) Mostly located in the polar regions

Question. Diversity of habitat over the total landscape is called
(a) b-diversity
(b) g-diveristy (gamma)
(c) landscape diversity
(d) ecosystem diversity

Question. Biosphere reserves differ from national parks and wildlife 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 brought from all over the world and preserved.

Question. The highest number of species in the world is represented by
(a) algae
(b) lichens
(c) fungi
(d) mosses

Question. Modern ex-situ conservation includes
(i) cryopreservation techniques
(ii) in vitro-fertilization
(ii) propagation of plants by using tissue culture methods
(a) Only (i)
(b) Only (iii)
(c) (ii) and (iii)
(d) All of these

Question. Which one of the following is correct expanded form of the following acronyms?
(a) IPCC = International Panel for Climate Change
(b) UNEP = United Nations Environmental Policy
(c) EPA = Environmental Pollution Agency
(d) IUCN = International Union for Conservation of Nature and Natural Resources

Question. A collection of plants and seed having diverse alleles of all the genes of a crop is called
(a) herbarium
(b) germplasm
(c) gene library
(d) genome

Question. Which of the following is not the example of recent extinction
(a) Steller’s sea cow
(b) Dodo
(c) Quagga
(d) Pigeon

Question. Amazon rain forest, called the ‘Lungs of the Planet’, contribute following percentage of oxygen by photosynthesis, to earth atmosphere
(a) 20%
(b) 35%
(c) 42%
(d) 50%

Question. Which of the following is the most serious threat to biodiversity?
(a) Competition from exotic species
(b) Commercial harvesting
(c) Habitat loss
(d) Overexploitation

Question. All forms of life should be conserved because
(a) they maintain diverse genetic resources.
(b) they have economic values.
(c) they are important for maintaining balance of nature.
(d) they will be otherwise lost.

Question. Which one of the following statement is correct for botanical garden?
(a) They provide a beautiful area for recreation.
(b) One can observe tropical plants there.
(c) They allow ex-situ conservation of germ plasm.
(d) They provide the natural habitat for wildlife.

Question. What is common to the following plants: Nepenthes, Psilotum, Rauwolfia and Aconitum?
(a) All are ornamental plants
(b) All are phylogenic link species
(c) All are prone to over exploitation
(d) All are exclusively present in the Eastern Himalayas.

Question. Which of the following is done in a wild life sanctuary?
(a) conservation of fauna
(b) conservation of flora
(c) utiliation of soil and flora
(d) prohibition of hunting

Question. Which one of the following statement is true for genetic diversity?
(a) The total genetic information contained within all individuals of species.
(b) The total phenotypic information contained within all individuals of a species.
(c) The variety of life-forms on earth.
(d) The variety of biotic communities in a region along with abiotic components.

Question. Which of the following is not a step in understanding biodiversity?
(a) Naming the species
(b) Looking at other related species
(c) Assessing the species geographic range
(d) Quantifying the species genome

Question. Biodiversity loss occurs due to the reasons given below.
(i) Habitat loss and fragmentation
(ii) Co-extinction
(iii) Over-exploitation
(iv) Alien species invasion
Identify the correct reasons.
(a) (i) and (ii)
(b) (i), (ii) and (iii)
(c) (ii), (iii) and (iv)
(d) (i), (ii), (iii) and (iv)

Question. Biodiversity of a geographical region represents
(a) endangered species found in the region
(b) the diversity in the organisms living in the region
(c) genetic diversity in the dominant species of the region
(d) species endemic to the region

Question. Which animal has become extinct from India?
(a) Snow Leopard
(b) Hippopotamus
(c) Wolf
(d) Cheetah

Question. A threatened species category includes
(a) only endangered species.
(b) only vulnerable species.
(c) endangered and rare species.
(d) endangered, vulnerable and rare species.

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

Question. Sacred groves are especially useful in
(a) preventing soil erosion.
(b) year-round flow of water in rivers.
(c) conserving rare and threatened species.
(d) generating environmental awareness

Question. Which one of the following pairs of organisms are exotic species introduced in India?
(a) Lantana camara, water hyacinth
(b) Water hyacinth, Prosopis cinereria
(c) Nile perch, Ficus religiosa
(d) Ficus religiosa, Lantana camara

Question. Which of the following group exhibit more species diversity?
(a) Gymnosperms
(b) Algae
(c) Bryophytes
(d) Fungi

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

Question. The historic convention on Biological Diversity held in Rio de Janeiro in 1992 is known as
(a) CITES Convention
(b) The Earth Summit
(c) G-16 Summit
(d) MAB Programme

Question. Which one of the following is not observed in biodiversity hot spots?
(a) Lesser inter-specific competition
(b) Species richness
(c) Endemism
(d) Accelerated species loss

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

Question. Which of the following countries has the highest biodiversity?
(a) South America
(b) South Africa
(c) Russia
(d) India

Question. Which of the following is considered a hot-spot of biodiversity in India?
(a) Indo-Gangetic Plain
(b) Eastern Ghats
(c) Aravalli Hills
(d) Western Ghats

Question. Which of the following is not a cause for loss of biodiversity?
(a) Destruction of habitat
(b) Invasion by alien species
(c) Keeping animals in zoological parks
(d) Over-exploitation of natural resources

Question. The active chemical drug reserpine is obtained from:
(a) Datura
(b) Rauwolfia
(c) Atropa
(d) Papaver

Question. Which of the following is not an invasive alien species in the Indian context?
(a) Lantana
(b) Cynodon
(c) Parthenium
(d) Eichhornia

Question. Match the animals given in column I with their location in column II.
Column I Column II
A. Dodo (i) Africa
B. Quagga (ii) Russia
C. Thylacine (iii) Mauritius
D. Stellar’s sea cow (iv) Australia

Choose the correct match from the following.
(a) A-(i), B-(iii), C-(ii), D-(iv)
(b) A-(iv), B-(iii), C-(i), D-(ii)
(c) A-(iii), B-(i), C-(ii), D-(iv)
(d) A-(iii), B-(i), C-(iv), D-(ii)

Question. The one-horned rhinoceros is specific to which of the following sanctuary?
(a) Bhitar Kanika
(b) Bandipur
(c) Kaziranga
(d) Corbett park

Question. Which of the following forests is known as the ‘lungs of the planet Earth’?
(a) Taiga forest
(b) Tundra forest
(c) Amazon rainforest
(d) Rainforests of North East India

Question. Species diversity increase as one proceeeds from
(a) high altitude to low altitude and high latitude to low latitude.
(b) low altitude to high altitude and high latitude to low latitude.
(c) low altitude to high altitude and low latitude to high latitude. 
(d) high altitude to low altitude and low latitude to high latitude

Question. Amongst the animal groups given below, which one appears to be more vulnerable to extinction?
(a) Insects
(b) Mammals
(c) Amphibians
(d) Reptiles

Question. Which one of the following is an endangered plant species of India?
(a) Rauwolfia serpentina
(b) Santalum album (Sandal wood)
(c) Cycas beddonei
(d) All of the above

Question. What is common to Lantana, Eichhornia and African catfish?
(a) All are endangered species of India.
(b) All are keystone species.
(c) All are mammals found in India.
(d) All the species are neither threatened nor indigenous species of India.

Question. Keystone species deserve protection because these
(a) are capable of surviving in harsh environmental condition
(b) indicate presence of certain mineral in the soil.
(c) have become rare due to overexploitation.
(d) play an important role in supporting other species.

Question. Which of the following statements is correct?
(a) Parthenium is an endemic species of our country.
(b) African catfish is not a threat to indigenous catfishes.
(c) Steller’s sea cow is an extinct animal.
(d) Lantana is popularly known as carrot grass.

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

Question. Among the ecosystem mentioned below, where can one find maximum biodiversity?
(a) Mangroves
(b) Desert
(c) Coral reefs
(d) Alpine meadows

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

Question. In cryopreservation germplasm is maintained at
(a) – 196° F
(b) 0° F
(c) – 100° F
(d) none of these

Question. Genetic diversity in agricultural crops is threatened by
(a) intensive use of pesticides
(b) extensive intercropping
(c) intensive use of fertilisers
(d) introduction of high yielding varieties.

Question. What is common to the techniques (i) in vitro fertilisation, (ii) Cryopreservation and (iii) tissue culture?
(a) All are in situ conservation methods.
(b) All are ex situ conservation methods.
(c) All require ultra modern equipment and large space.
(d) All are methods of conservation of extinct organisms

We hope the above multiple choice questions for Class 12 Biology for Chapter 15 Biodiversity and Conservation provided above with answers based on the latest syllabus and examination guidelines issued by CBSE, NCERT and KVS are really useful for you. Biodiversity and Conservation is an important chapter in Class 12 as it provides very strong understanding about this topic. Students should go through the answers provided for the MCQs after they have themselves solved the questions. All MCQs have been provided with four options for the students to solve. These questions are really useful for benefit of class 12 students. Please go through these and let us know if you have any feedback in the comments section.