NEET Biodiversity and Conservation PYQ practice sheet

17 previous-year NEET Botany questions from Biodiversity and Conservation, newest papers first. Biodiversity and Conservation carries 20 of the Botany questions in NEET 2020 to 2026, so this is a good place to test yourself after revising the chapter. Marking: +4 correct, −1 wrong.

Practise all 17 online

1.
RE-NEET 2026
Arrange the following in descending order of number of species in the Amazonian rain forest. (a) Plants (b) Birds (c) Fishes (d) Invertebrates (e) Mammals Choose the correct answer from the options given below :
- (A)
  (c) > (b) > (d) > (e) > (a)
- (B)
  (b) > (a) > (d) > (c) > (e)
- (C)
  (d) > (a) > (c) > (b) > (e)
- (D)
  (e) > (b) > (a) > (c) > (d)
2.
NEET 2026
Exploring molecular, genetic and species-level diversity for products of economic importance is called
- (A)
  Bioprospecting
- (B)
  Biofortification
- (C)
  Bioremediation
- (D)
  Biomagnification
3.
NEET 2026
Since the origin and diversification of life on Earth, there have been five episodes of mass extinction of species. How is the sixth extinction, which is in progress, different from the previous episodes?
- (A)
  The present species extinction rates are 100 to 1000 times faster than in the pre-human times.
- (B)
  The current species extinction rate is nearly 10 times faster than in previous episodes.
- (C)
  The current species extinction rates are far lower than those in previous episodes.
- (D)
  The present net species extinction rate is zero.
4.
NEET 2026
Which of the following statements are correct? A. The Amazon rainforest being cut and cleared for cultivation of soyabeans is an example of habitat loss. B. Steller's sea cow and passenger pigeon became extinct due to over-exploitation by humans. C. The Nile perch introduced into Lake Victoria in East Africa helped in population growth of cichlid fish in the lake. D. Water hyacinth is an invasive species. E. When a species becomes extinct, the plant and animal species associated with it are not affected. Choose the correct answer from the options given below:
- (A)
  A, B and E only
- (B)
  C, D and E only
- (C)
  B, C and D only
- (D)
  A, B and D only
5.
NEET 2026
Which of the following is an in situ conservation method?
- (A)
  Sacred Groves
- (B)
  Botanical Gardens
- (C)
  Wildlife Safari Parks
- (D)
  Seed Banks
6.
NEET 2026
'The Evil Quartet' of biodiversity loss includes which of the following?
- (A)
  Over-exploitation; Alien species invasions; Soil pollution; Co-extinctions
- (B)
  Over-exploitation; Alien species invasions; Air pollution; Co-extinctions
- (C)
  Habitat loss and fragmentation; over-exploitation; Alien species invasions; Co-extinctions
- (D)
  Habitat loss and fragmentation; Air pollution; Water pollution; Co-extinctions
7.
NEET 2024
The type of conservation in which the threatened species are taken out from their natural habitat and placed in special setting where they can be protected and given special care is called:
- (A)
  in-situ conservation
- (B)
  Semi-conservative method
- (C)
  Sustainable development
- (D)
  Biodiversity conservation
8.
NEET 2024
Tropical regions show greatest level of species richness because A. Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification. B. Tropical environments are more seasonal. C. More solar energy is available in tropics. D. Constant environments promote niche specialization. E. Tropical environments are constant and predictable. Choose the correct answer from the options given below:
- (A)
  A, C, D and E only
- (B)
  A, B and D only
- (C)
  A, B and E only
- (D)
  A and B only
9.
NEET 2024
These are regarded as major causes of biodiversity loss: A. Over exploitation B. Co-extinction C. Mutation D. Habitat loss and fragmentation E. Migration Choose the correct option:
- (A)
  A, B, C and D only
- (B)
  A, B and D only
- (C)
  A, B and E only
- (D)
  A, C and D only
10.
NEET 2024
List of endangered species was released by:
- (A)
  GEAC
- (B)
  Foam
- (C)
  WWF
- (D)
  IUCN
11.
NEET 2024
Match List-I with List-II. List-I: (A) Robert May, (B) Alexander von Humboldt, (C) Paul Ehrlich, (D) David Tilman List-II: (I) Species area relationship, (II) Long term ecosystem experiment using out door plots, (III) Global species diversity at about 7 million, (IV) Rivet popper hypothesis Choose the correct answer from the options given below:
- (A)
  A-III, B-IV, C-II, D-I
- (B)
  A-III, B-I, C-IV, D-II
- (C)
  A-I, B-III, C-II, D-IV
- (D)
  A-II, B-III, C-I, D-IV
12.
NEET 2023
Among 'The Evil Quartet', which one is considered the most important cause driving extinction of species?
- (A)
  Co-extinctions
- (B)
  Habitat loss and fragmentation
- (C)
  Over exploitation for economic gain
- (D)
  Alien species invasions
13.
NEET 2023
The historic Convention on Biological Diversity, 'The Earth Summit' was held in Rio de Janeiro in the year :
- (A)
  2002
- (B)
  1985
- (C)
  1992
- (D)
  1986
14.
NEET 2022
Which of the following is not a method of ex situ conservation?
- (A)
  Cryopreservation
- (B)
  In vitro fertilization
- (C)
  National Parks
- (D)
  Micropropagation
15.
NEET 2022
Habitat loss and fragmentation, over exploitation, alien species invasion and co-extinction are causes for:
- (A)
  Natality
- (B)
  Population explosion
- (C)
  Competition
- (D)
  Biodiversity loss
16.
NEET 2020
According to Robert May, the global species diversity is about :
- (A)
  1.5 million
- (B)
  20 million
- (C)
  50 million
- (D)
  7 million
17.
NEET 2020
Which of the following regions of the globe exhibits highest species diversity?
- (A)
  Western Ghats of India
- (B)
  Madagascar
- (C)
  Himalayas
- (D)
  Amazon forests

Answer key

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