Biodiversity loss is now one of the world's most pressing crises. The primary reason for this is:
1. we cannot do anything about it
2. we are not responsible for this loss
3. we still do not know its entire extent
4. it is affecting only the developing countries

Concept Questions :-

Loss of Biodiversity
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The main difference between "Sixth Extinction" and the previous five extinctions is that the sixth extinction:
1. is mainly occurring on islands
2. is mainly affecting plants
3. is occurring at a faster rate
4. does not involve human activities

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

1. Predictability

2. Predation

3. High productivity

4. Spatial homogeneity

Concept Questions :-

Introduction & Types
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Which of the following is the breeding place for Flamingoes in India?
1. Lake Chilka
2. Sambar lake
3. Runn of Kuchch
4. Silent valley

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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

Concept Questions :-

Biodiversity Patterns
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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

Concept Questions :-

In Situ Conservation of Biodiversity
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Which of the following has maximum global biodiversity?
1. Angiosperms
2. Algae
3. Fungi
4. Mosses

Concept Questions :-

Magnitude of Biodiversity
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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.

Concept Questions :-

Loss of Biodiversity
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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

Concept Questions :-

In Situ Conservation of Biodiversity
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Alexander von Humbolt described for the first time 
(a) ecological biodiversity
(b) law of limiting factor
(c) species area relationships
(d) population growth equation 

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