Which of the following does not contribute to the species diversity of the tropics?

1. Predictability

2. Predation

3. High productivity

4. Spatial homogeneity

Subtopic:  Introduction & Types |
From NCERT
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The relation between species richness and area for a wide variety of taxa on a logarithmic scale is a:

1. rectangular hyperbola

2. straight line

3. sigmoid curve

4. sine curve

Subtopic:  Biodiversity Patterns |
 52%
From NCERT
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The hot spots of biodiversity conservation are characterized by:
1. High endemicity and high threat of extinction
2. Low endemicity and high threat of extinction
3. High endemicity and low threat of extinction
4. Low endemicity and low threat of extinction

Subtopic:  In Situ Conservation of Biodiversity |
 68%
From NCERT
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Which of the following has maximum global biodiversity?
1. Angiosperms
2. Algae
3. Lichens
4. Mosses

Subtopic:  Magnitude of Biodiversity |
 56%
From NCERT
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What is applicable to both Lates niloticus and Lantana camara ?

1. They are on the verge of extinction due to over-exploitation by humans.

2. They are alien species that became invasive in certain environments causing threat to indigenous biodiversity.

3. They are mutualists and likely to undergo co-extinction in recent future.

4. They are keystone species and are vital to the stability of tropical ecosystems.

Subtopic:  Loss of Biodiversity |
 85%
From NCERT
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The most effective means of conservation of biodiversity is:
1. Remove predators
2. Preserve habitats
3. Vaccinate against disease
4. Census the species during breeding season

Subtopic:  In Situ Conservation of Biodiversity |
 86%
From NCERT
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Alexander von Humbolt described for the first time 
(1) ecological biodiversity

(2) law of limiting factor

(3) species area relationships

(4) population growth equation 

Subtopic:  Biodiversity Patterns |
 89%
From NCERT
NEET - 2017
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Presence of plants arranged into well defined vertical layers depending on their height can be best seen in

(1) tropical savannah

(2) tropical rain forest

(3) grassland

(4) temperate forest

Subtopic:  Biodiversity Patterns |
 82%
NEET - 2017
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Which one of the following is related to Ex-situ conservation of threatened animals and plants?

1. Wildlife Safari parks

2. Biodiversity hotspots

3. Amazon rainforest

4. Himalayan region

Subtopic:  Ex Situ Conservation of Biodiversity |
 85%
From NCERT
NEET - 2017
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The region of biosphere reserve, which is legally protected and where no human activity is allowed is known as

(a) core zone

(c) transition zone

(b) buffer zone

(d) restoration zone

Subtopic:  In Situ Conservation of Biodiversity |
 73%
NEET - 2017
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