The total number of biodiversity hotspots in the world is:

1.252.17
3.344.51

Subtopic:  In Situ Conservation of Biodiversity |
 92%
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Biodiversity loss is now one of the world’s most pressing crisis. The primary reason for this is that:

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 only affecting the developing countries
Subtopic:  Importance of Biodiversity | Loss of Biodiversity |
 72%

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Between community, diversity is known as:

1.alpha diversity2.beta diversity
3.gamma diversity4.delta diversity

Subtopic:  Introduction & Types |
 60%

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Rice grown in Asia is protected from four main diseases by gene received from a single wild rice species that is:
1. Oryza nivara
2. Oryza indica
3. Oryza sativa
4. Oryza orientalis

Subtopic:  Magnitude of Biodiversity |

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Which of the following is a source of an antimalarial drug?

1.Papaver somniferum2.Cinchona officinalis
3.Artemesia species4.Both 2 and 3

Subtopic:   Biodiversity Conservation |
 58%

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The bark of the yew tree, Taxus brevifolia, is source of:
1. an antileprosy drug
2. an anticancer drug
3. a broad spectrum antibiotic
4. an analgesic and sedative

Subtopic:   Biodiversity Conservation |
 59%

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A plant, that has invaded many forest lands in India and is also known as Spanish Flag or Red sage, is:

1. Lantana camara 2. Eicchornia
3. Parthenium argentatum 4. Argemone mexicana
Subtopic:  Loss of Biodiversity |
 51%

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Which of the following characteristics does not make a species vulnerable to extinction?
1. a large body size
2. small population size and low reproductive rates
3. feeding at a lower trophic level in the food chain
4. fixed migratory route and habitat

Subtopic:  Loss of Biodiversity |

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Why is woodland caribou prone to extinction?
1. It has a low reproductive rate
2. It has fixed migratory route and habitat
3. It is localised and has a narrow range of distribution
4. It has a large body size

Subtopic:  Loss of Biodiversity |
 57%

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Why are blue whale and whooping crane prone to extinction?
1. It has a low reproductive rate
2. It has fixed migratory route and habitat
3. It is localised and has a narrow range of distribution
4. It has a large body size

Subtopic:  Loss of Biodiversity |

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