Students are advised to practice the NCERT MCQ Questions for Class 12 Biology Chapter 15 Biodiversity and Conservation with Answers Pdf free download is available here. MCQ Questions for Class 12 Biology with Answers are prepared as per the Latest Exam Pattern. Students can solve these Biodiversity and Conservation Class 12 MCQs Questions with Answers and assess their preparation level.
Biodiversity and Conservation Class 12 MCQs Questions with Answers
Solving the Biodiversity and Conservation Multiple Choice Questions of Class 12 Biology Chapter 15 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Biodiversity and Conservation Class 12 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 15 Biology Class 12 and cross-check your answers during preparation.
Select the correct answer:
Question 1.
Which of the following countries has the highest biodiversity?
(a) Brazil
(b) South Africa
(c) Russia
(d) India.
Answer
Answer: (a) Brazil
Question 2.
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.
Answer
Answer: (c) Keeping animals in zoological parks
Question 3.
Which of the following is not an invasive alien species in the Indian context?
(a) Lantana
(b) Cynodon
(c) Parthenium
(d) Eichhornia.
Answer
Answer: (b) Cynodon
Question 4.
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
Answer: (a) Rain forest of North-East India
Question 5.
Which one of the following is not a major characteristic feature of biodiversity hotspots?
(a) Large number of species
(b) Abundance of endemic species
(c) Large number of exotic species
(d) Destruction of habitat.
Answer
Answer: (d) Destruction of habitat.
Question 6.
Match the animals given in column A with their location in column B:
| Column I | Column II |
| (i) Dodo | (a) Africa |
| (ii) Quagga | (b) Russia |
| (iii) Thylacine | (c) Mauritius |
| (iv) Stellar’s sea cow | (d) Australia |
Choose the correct match from the following:
(a) i-a, ii-c, iii-b, iv-d
(b) i-d, ii-c, iii-a, iv-b
(c) i-c, ii-a, iii-b, iv-d
(d) i-c, ii-a, iii-d, iv-b.
Answer
Answer: (d) i-c, ii-a, iii-d, iv-b.
Question 7.
What is common to the following plants: Nepenthes, Psilotum, Rauwolfia and Acontium?
(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.
Answer
Answer: (c) All are prone to over-exploitation
Question 8.
The most important cause of biodiversity loss is:
(a) Over exploitation of economic species
(b) Habitat loss and fragmentation
(c) Invasive species
(d) Breakdown of plant-pollinator relationships
Answer
Answer: (b) Habitat loss and fragmentation
Question 9.
Amongst the animal groups given below, which one has the highest percentage of endangered species?
(a) Insects
(b) Mammals
(c) Amphibians
(d) Reptiles.
Answer
Answer: (c) Amphibians
Question 10.
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.
Answer
Answer: (d) All of the above.
Question 11.
What is common to Lantana, Eichhornia and African catfish?
(a) All are endangered species of India
(b) All are key stone species
(c) All are mammals found in India
(d) All the species are neither threatened nor indigenous species of India.
Answer
Answer: (d) All the species are neither threatened nor indigenous species of India.
Question 12.
The extinction of passenger pigeon was due to:
(a) Increased number of predatory birds.
(b) Over-exploitation by humans
(c) Non-availability of the food
(d) Bird flu virus infection
Answer
Answer: (b) Over-exploitation by humans
Question 13.
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.
Answer
Answer: (b) African catfish is not a threat to indigenous catfishes.
Question 14.
Among the ecosystem mentioned below, where can one find maximum biodiversity?
(a) Mangroves
(b) Desert
(c) Coral reefs
(d) Alpine meadows
Answer
Answer: (c) Coral reefs
Question 15.
Which of the following forests is known as the ‘lungs of the planet Earth’?
(a) Tiaga forest
(b) Tundra forest
(c) Amazon rain forest
(d) Rain forests of North East India
Answer
Answer: (c) Amazon rain forest
Question 16.
The active chemical drug reserpine is obtained from:
(a) Datura
(b) Rauwolfia
(c) Atropa
(d) Papaver
Answer
Answer: (b) Rauwolfia
Question 17.
Which of the following groups of plants exhibit more species diversity?
(a) Angiosperms
(b) Algae
(c) Bryophytes
(d) Fungi
Answer
Answer: (d) Fungi
Question 18.
Which of the below-mentioned regions exhibit less seasonal variations?
(a) Tropics
(b) Temperates
(c) Alpines
(d) Both (a) & (b).
Answer
Answer: (a) Tropics
Question 19.
The historic convention on Biological Diversity held in Rio Janeiro in 1992 is known as:
(a) CITES Convention
(b) The Earth Summit
(c) G-16 Summit
(d) AAAB Programme
Answer
Answer: (b) The Earth Summit
Question 20.
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
Answer
Answer: (b) All are ex situ conservation methods
Question 21.
Select the incorrect statement.
(a) Species diversity increases as we move away from the equator towards the poles.
(b) Stellar’s sea cow and passenger pigeon got extinct due to over-exploitation by man.
(c) Lantana and Eichhornia are invasive weed species in India.
(d) Among animals, insects are the most species-rich taxonomic group.
Answer
Answer: (a) Species diversity increases as we move away from the equator towards the poles.
Assertion and Reason Type Questions
In the following questions, a statement of Assertion (A) followed by statement of Reason(R) is given. Choose the correct option out of the choices given below each question.
(a) If both Assertion and Reason are true and Reason is a correct explanation of the Assertion.
(b) If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
(c) If Assertion is true but Reason is false.
(d) If both Assertion and Reason are false.
Question 22.
Assertion: With few exceptions, tropics harbour more species than temperate or polar areas.
Reason: Species diversity decreases as we move away from the equator towards the poles.
Answer
Answer: (a) If both Assertion and Reason are true and Reason is a correct explanation of the Assertion.
Question 23.
Assertion: In wildlife conservation, micro-organisms are not considered to be conserved.
Reason: Micro-organisms are not of much importance to mankind.
Answer
Answer: (d) If both Assertion and Reason are false.
Question 24.
Assertion: Rate of extinction of wildlife has become rapid in the last one hundred years.
Reason: Unplanned human activities have destroyed the natural habitats of many species of wildlife.
Answer
Answer: (a) If both Assertion and Reason are true and Reason is a correct explanation of the Assertion.
Question 25.
Assertion: Golden langur is a vulnerable species.
Reason: Number of Golden langur has reduced and their natural habitat is also affected.
Answer
Answer: (b) If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.
Question 26.
Assertion: In India many national parks have been set up to protect wildlife.
Reason: Biosphere reserves have greater importance than the national parks.
Answer
Answer: (c) If Assertion is true but Reason is false.
Question 27.
Assertion: Cotton and jute are fibre-yielding plants.
Reason: Cotton is obtained from seed hair (lint) and jute fibres are obtained from stalks of retted jute.
Answer
Answer: (a) If both Assertion and Reason are true and Reason is a correct explanation of the Assertion.
Question 28.
Assertion: For the management of wildlife, environmental pollution must be checked.
Reason: Environment provides the life-supporting systems to wildlife.
Answer
Answer: (a) If both Assertion and Reason are true and Reason is a correct explanation of the Assertion.
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