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प्रश्न
Which of the following statements is correct?
विकल्प
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
Give any 'two' examples of endangered species
Substantiate with the help of one example that in an ecosystem mutualists
are also one of the major causes of biodiversity loss.
Suggest two practices giving one example of each, that help protect rare or threatened species.
Species that possess a very high risk of extinction due to rapid population decline of about 50 - 70 % over three generations is designated as ______.
Acronym for IUCN is ____________.
______ refers to the conservation of endangered species outside their natural habitats.
Species that possess a very high risk of extinction due to population decline of about 30 - 50 % over past 10 years are categorized as _______.
The Red List of threatened species is published by ______.
Currently, ______ mass extinction is considered to be the progressing at an alarming rate due to the loss of biodiversity.
'The Evil Quartet' is a concept which describes the ______.
Which one of the following is a natural cause of extinction of flora and fauna?
What are the major factors that are responsible for the loss of biodiversity? What steps are needed to prevent them?
The extinction of passenger pigeon was due to ______.
IUCN means
How can you, as an individual, prevent the loss of biodiversity?
Enlist two criteria that are used to identify a region for maximum protection as 'Biodiversity hotspots'.
Name any two biodiversity hot spots in India.
Consider the following statements:
- Statement I: Endemism and accelerated habitat loss are characteristics of biodiversity hotspots.
- Statement II: Gene bank is an in-situ method of biodiversity conservation.
Choose the correct answer from the options given below.
Which one of the following groups faces maximum threat of extinction?
Name any two factors responsible for the loss of biodiversity in a geographical region.
