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प्रश्न
Which of the following statements is correct?
पर्याय
Parthenuim is an endemic species of our country
African catfish is not a threat to indigenous catfishes.
Steller' s sea cow is an extinct animal
Lantana is popularly known as carrot grass
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उत्तर
Steller's sea cow is an extinct animal
Explanation:
The Steller's sea cow (from Russia) is a recently extinct mammal, and parthenuim (carrot grass) is an alien weed that spreads quickly and harms native species.
African catfish is likewise an alien species that has a negative impact on the growth of our native species, claires batrachus.
Another alias species, Lantana camara, is a powerful competitor of native species.
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संबंधित प्रश्न
Can you think of a situation where we deliberately want to make a species extinct? How would you justify it?
With the help of any one example explain Alien species invasion as one of the causes of Biodiversity losses.
Species that possess a high risk of extinction with very few surviving members (50) are categorised as ____________ by the IUCN.
'The Evil Quartet' is a concept which describes the ______.
Which one of the following is a natural cause of extinction of flora and fauna?
Threatened species are those which ______.
What is common to lantana Eichhomia and African catfish?
Which of the following are major causes of species losses in a geographical region?
What does 'Red' indicate in the IUCN Red list (2004)?
Of the four major causes for the loss of biodiversity (Alien species invasion, habitat loss and fragmentation, over-exploitation and co-extinctions which according to you is the major cause for the loss of biodiversity? Give reasons in support.
List any two major causes other than anthropogenic causes of the loss of biodiversity.
How can you, as an individual, prevent the loss of biodiversity?
How many Biodiversity hotspots have been identified around the world?
The species placed in CR category is ______.
Western Ghats have a large number of plant and animal species that are not found anywhere else. Which of the following terms will you use to notify such species?
Match the species in Column I with its category in Column II.
| Column I | Column II |
| A. Rare species | I. No species |
| B. Vulnerable species | II. Facing a high risk of extinction |
| C. Endangered species | III. Localised species |
| D. Extinct species | IV. Species under threat |
Choose the correct answer from the options given below.
Mention any two places where the ex-situ conservation is undertaken.
Red Data Book is maintained by ______.
Which one of the following is NOT one of the 'Evil Quartet' responsible for the loss of biodiversity?
Which of the following is NOT one of the four causes grouped as the 'Evil Quartet'?
