Biodiversity and Conservation

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 ?

[NEET 2026]

Exploring molecular, genetic and species-level diversity for products of economic importance is called :

[NEET 2026]

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:

[NEET 2024]

List of endangered species was released by-

[NEET 2024]

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:

[Re-NEET 2026]

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;

[NEET 2024]

List of endangered species was released by-

[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:

[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:

[NEET 2024]

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 options given below:

[NEET 2026]

The regions with high level of species richness, high degree of endemism and a loss of 70 % of the species and habitat are identified as :

[Re-NEET 2024]

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

[NEET 2026]

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;

[NEET 2024]

Cryopreservation technique is used for:

[Re-NEET 2024]

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

[NEET 2025]

Which one of the following is not included under in-situ conservation?

[Re-NEET 2024]

The regions with high level of species richness, high degree of endemism and a loss of 70 % of the species and habitat are identified as :

[Re-NEET 2024]

Which of the following is an in-situ conservation method?

[NEET 2026]

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:

[NEET 2024]

Which of the following regions of the globe exhibits highest species diversity?

According to Alexander von Humboldt:

In 'rivet popper hypothesis', Paul Ehrlich compared the rivets in an airplane to:

Among ‘The Evil Quartet’, which one is considered the most important cause driving extinction of species?

In the following in each set a conservation approach and an example of method of conservation are given

A. In situ conservation - Biosphere Reserve

B. Ex situ conservation - Sacred groves

C. In situ conservation - Seed bank

D. Ex situ conservation - Cryopreservation

Select the option with correct match of approach and method:

[Re-NEET 2020]

The historic Convention on Biological Diversity, ‘The Earth Summit’ was held in Rio de Janeiro in the year:

Which of the following is/are cause(s) of biodiversity losses?

Which of the following regions of the globe exhibits highest species diversity?

[NEET 2020]

According to Robert May, the global species diversity is about

[NEET 2020]

According to Robert May, the global species diversity is about: