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प्रश्न
Can you think of a situation where we deliberately want to make a species extinct? How would you justify it?
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उत्तर
Yes, there are situations where we deliberately want to drive certain species to extinction. This argument is highly justified in the following way:
- Target Species: This classification applies to causal organisms or pathogens that trigger deadly epidemic human diseases (such as the Polio virus, HIV, and Varicella virus).
- Justification: Eradicating these disease-causing viruses is completely justified because they are extremely harmful to human health and survival. Furthermore, they do not play any beneficial role as decomposers or producers, and their elimination does not disturb the natural food chains or ecosystem stability.
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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.
Answer the following question:
Substantiate with the help of one example that in an ecosystem mutualists
(i) tend to co-evolve and
(ii) are also one of the major causes of biodiversity loss.
Species that possess a very high risk of extinction due to rapid population decline of about 50 - 70 % over three generations is designated as ______.
Which among the following is an exception to invasive species?
'The Evil Quartet' is a concept which describes the ______.
Which among the following is an in situ conservation method for national genetic resources?
Which one of the following is a natural cause of extinction of flora and fauna?
Match the following columns.
| Column - I | Column - II |
| (i) Dodo | (a) Africa |
| (ii) Ouagga | (b) Russia |
| (iii) Thylacine | (c) Mauritius |
| (iv) Stellar's sea cow | (d) Australia |
Choose the correct match from the following
What is common to lantana Eichhomia and African catfish?
Which of the following are major causes of species losses in a geographical region?
Match the animals given in column I with their location in column II:
| Column I | Column II |
| A. Dodo | i. Africa |
| B. Quagga | ii. Russia |
| C. Thylacine | iii. Mauritius |
| D. Stellar's sea cow | iv. Australia |
Choose the correct match from the following:
What is common to the following plants: Nepenthes, Psilotum, Rauwolfia and Aconitum?
Explain as to how protection of biodiversity hot spots alone can reduce up to 30% of the current rate of species extinction.
Discuss one example, based on your day-to-day observations, showing how loss of one species may lead to the extinction of another.
List any two major causes other than anthropogenic causes of the loss of biodiversity.
Though the conflict between humans and wildlife started with the evolution of man, the intensity of conflict has increased due to the activities of modern man. Justify your answer with suitable examples.
How many Biodiversity hotspots have been identified around the world?
Enlist two criteria that are used to identify a region for maximum protection as 'Biodiversity hotspots'.
The species placed in CR category is ______.
Which of the following suits hotspots in ecological terminology?
Decline in the population of Indian native fishes due to introduction of Clarias gariepinus in river Yamuna can be catogoriesd as ______.
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.
What is ex-situ conservation?
Which one of the following is a pair of endangered species?
Which of the following regions of the globe exhibits highest species diversity?
The sixth extinction in progress currently is different from all previous extinctions on earth as it is ______.
What are the reasons for loss of biodiversity?
These are regarded as major causes of biodiversity loss:
- Over exploitation
- Co-extinction
- Mutation
- Habitat loss and fragmentation
- Migration
Choose the correct option:
