Q. No.Which of the following is not correct about Fragmentation?
(1) Large habitats are broken up into small fragments due to various human activities
(2) Mammals and birds are affected by fragmentation as they need large territory
(3) Certain animals with migratory habits are badly affected leading to population decline
(4) The main reason for the cause of fragmentation is soya bean cultivation
(1) Large habitats are broken up into small fragments due to various human activities
(2) Mammals and birds are affected by fragmentation as they need large territory
(3) Certain animals with migratory habits are badly affected leading to population decline
(4) The main reason for the cause of fragmentation is soya bean cultivation
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
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
Which of the following is not an example of Alien species for our ecosystems?
(1) Carrot Grass
(2) Indigenous catfishes
(3) Lantana
(4) Eichhornia
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
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
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
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
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
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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