The species of plants that plays a vital role in controlling the relative abundance of other species in a community is called _______.
1. alien species 2. endemic species
3. exotic species 4. keystone species

Subtopic:  Importance of Biodiversity |
 62%
NEET - 2023
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Which of the following is/are cause(s) of biodiversity losses?
1. Over-exploitation, habitat loss and fragmentation
2. Climate change only
3. Over-exploitation only
4. Habitat loss and fragmentation only
Subtopic:  Loss of Biodiversity |
 89%
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NEET - 2023
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In 'rivet popper hypothesis', Paul Ehrlich compared the rivets in an airplane to
1.species within a genus2.genetic diversity
3.ecosystem4.genera within a family
Subtopic:  Importance of Biodiversity |
 65%
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NEET - 2023
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Among 'The Evil Quartet', which one is considered the most important cause driving extinction of species?
1. Co-extinctions
2. Habitat loss and fragmentation 
3. Over exploitation for economic gain 
4. Alien species invasions
Subtopic:  Loss of Biodiversity |
 83%
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NEET - 2023
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The historic Convention on Biological Diversity, 'The Earth Summit' was held in Rio de Janeiro in the year :
1.20022.1985
3.19924.1986
Subtopic:  Ex Situ Conservation of Biodiversity |
 80%
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NEET - 2023
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Match List-I with List-II : 
List-I List-II
(a) Sacred groves (i) Alien species
(b) Zoological park (ii) Release of large quantity of oxygen
(c) Nile perch (iii) Ex-situ conservation
(d) Amazon forest (iv) Khasi Hills in Meghalaya

Choose the correct answer from the options given below :
(a) (b) (c) (d)
1. (iv) (iii) (i) (ii)
2. (ii) (iv) (i) (iii)
3. (iv) (i) (ii) (iii)
4. (iv) (iii) (ii) (i)
Subtopic:  Importance of Biodiversity | Loss of Biodiversity | In Situ Conservation of Biodiversity | Ex Situ Conservation of Biodiversity |
 92%
From NCERT
NEET - 2022
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The World Summit on sustainable development held in 2002 in Johannesburg, South Africa pledged for:
1. A significant reduction in the current rate of biodiversity loss.
2. Declaration of more biodiversity hotspots.
3. Increase in agricultural production
4. Collection and preservation of seeds of different genetic strains of commercially important plants.
Subtopic:   Biodiversity Conservation |
 83%
From NCERT
NEET - 2022
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Give the correct descending order of organisms with reference to their estimated number found in Amazon forest.
(a) Plants (b) Invertebrates
(c) Fishes (d) Mammals
(e) Birds

Choose the correct answer from the options given below:
1. (a) > (b) > (e) > (d) > (c) 2. (a) > (c) > (d) > (b) > (e)
3. (b) > (a) > (e) > (d) > (c) 4. (b) > (a) > (c) > (e) > (d)
Subtopic:  Biodiversity Patterns |
 64%
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NEET - 2022
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Endemism refers to: 
1. Species richness 
2. Species evenness 
3. Species confined to that region 
4. Species diversity 

Subtopic:  Importance of Biodiversity | Loss of Biodiversity |
 79%
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NEET - 2022
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Species Area relationship is described by the following equation. 
log S = log C + Z log A 
where Z is: 
1. Area 
2. Species richness 
3. Slope of the line 
4. Y-intercept 

Subtopic:  Biodiversity Patterns |
 77%
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NEET - 2022
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