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Biodiversity and Conservation · Question 2

NEET (UG) 2026MCQEasy📈 Topic in 62% papers+4−1
1

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 ?

  1. The current species extinction rates are far lower than those in previous episodes.
  2. The present species extinction rates are 100 to 1000 times faster than in the pre-human times.
  3. The present net species extinction rate is zero.
  4. The current species extinction rate is nearly 10 times faster than in previous episodes.

Answer

(2) The present species extinction rates are 100 to 1000 times faster than in the pre-human times.

Solution

As per NCERT, the current (sixth) extinction is different because it is driven by human activities.

Species are now being lost an estimated 100 to 1000 times faster than in the pre-human times.

Answer: (2)

NEET (UG) 2026

Keep practising — Biodiversity and Conservation

2

"The Evil Quartet" of biodiversity loss includes which of the following ?

  1. Over-exploitation; Alien species invasions; Soil pollution; Co-extinctions
  2. Habitat loss and fragmentation; Air pollution; Water pollution; Co-extinctions
  3. Habitat loss and fragmentation; over-exploitation; Alien species invasions; Co-extinctions
  4. Over-exploitation; Alien species invasions; Air pollution; Co-extinctions
NEET (UG) 2026
3

Which of the following is an in situ conservation method ?

  1. Seed Banks
  2. Sacred Groves
  3. Botanical Gardens
  4. Wildlife Safari Parks
NEET (UG) 2026
4

Which of the following statements are correct ? Choose the correct answer from the options given below :

  1. A, B and D only
  2. B, C and D only
  3. A, B and E only
  4. C, D and E only
NEET (UG) 2026
5

Arrange the following in descending order of number of species in the Amazonian rain forest.

  1. B > A > D > C > E
  2. C > B > D > E > A
  3. D > A > C > B > E
  4. E > B > A > C > D
RE-NEET (UG) 2026
6

Which one of the following is an example of ex-situ conservation?

  1. Zoos and botanical gardens
  2. Protected areas
  3. National Park
  4. Wildlife Sanctuary
NEET (UG) 2025
7

Match List-I with List-II Choose the option with all correct matches.

  1. A-III, B-IV, C-II, D-I
  2. A-III, B-II, C-IV, D-I
  3. A-III, B-II, C-I, D-IV
  4. A-III, B-I, C-II, D-IV
NEET (UG) 2025
8

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

  1. in-situ conservation
  2. Ex-situ conservation
  3. Semi-conservative method
  4. Sustainable development
NEET (UG) 2024
9

These are regarded as major causes of biodiversity loss: Choose the correct option:

  1. A, C and D only
  2. A, B, C and D only
  3. A, B and E only
  4. A, B and D only
NEET (UG) 2024
10

List of endangered species was released by

  1. GEAC
  2. WWF
  3. FOAM
  4. IUCN
NEET (UG) 2024
11

Tropical regions show greatest level of species richness because Choose the correct answer from the options given below.

  1. A, C, D and E only
  2. A and B only
  3. A, B and E only
  4. A, B and D only
NEET (UG) 2024

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