Which of the following are the extinctions caused by over exploitation for the last 500 years?

  1. Steller's Sea cow
  2. Passenger Pegion
  3. Dodo
  4. Both A and B
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Which of the following is wrong information about consequence of Alien Species Invasions?

  1. Nile Perch - Alien Species
  2. Lake Victoria in East Africa - the ecosystem in which h alien species was introduced
  3. Cichlid fish: Extincted species
  4. Number of extincted species: 176
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Which of the following is not an example of Alien species for our ecosystems?

  1. Carrot Grass
  2. Indigenous catfishes
  3. Lantana
  4. Eichhornia
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The recent illegal introduction of the African catfish……..for aquaculture puposes is posing a threat to the indigenous catfishes of our Rivers

  1. Clarius gariepinus
  2. Cichlid fishes
  3. Parthenium
  4. Steller's Sea cow
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Which of the following is not an example of Co-extinctions?

  1. Plant-pollinator mutualism
  2. Host-parasite extinction
  3. Plant-animal species in an obligatory relationship
  4. Fragmentation in Amazon Rain Forests and Species of mammals
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Which of the following is not a narrowly utilitarian reasons for the conservation of Biodiversity?

  1. Direct economic benefits like cereals, pulses and Fruits
  2. Firewood, Fibre, construction material
  3. Tannins, lubricants, dyes, resins, perfumes
  4. Oxygen, Aesthetic Pleasure
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How much Oxygen does Amazon Forest is estimated to produce through photosynthesis?

  1. 20 per cent of the total oxygen in the Earth's atmosphere
  2. 30 per cent of the total oxygen in the Earth's atmosphere
  3. 40 per cent of the total oxygen in the Earth's atmosphere
  4. 60 per cent of the total oxygen in the Earth's atmosphere
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Which of the following is not categorized under broadly utilitarian reasons of biodiversity?

  1. Oxygen
  2. Pollination
  3. Intangible benefits like walking through thick woods
  4. Tannins, lubricants, Perfumes
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More than…a…. of the drugs currently sold in the market worldwide are derived from plants and …b…...species of plants contribute to the traditional medicines used by native people around the world.

  1. a- 25 per cent
  2. b-12000
  3. a- 30 per cent
  4. a- 39 per cent
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In bioprospecting, which of the diversity is not explored for products of economic importance?

  1. Molecular Biodiversity
  2. Genetic level biodiversity
  3. Species level biodiversity
  4. Gamma biodiversity
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