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प्रश्न
What criteria should one use in categorizing a species as threatened?
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उत्तर
The criteria that should be used in categorising a specials as threatened are
- Number of the members of the species is declining at an alarming rate.
- Their habitat is being modified or destroyed.
- Predator or poacher activities are increasing.
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संबंधित प्रश्न
Suggest two practices giving one example of each, that help protect rare or threatened species.
Dodo bird, stellar sea cow and passenger pigeon are few examples of extinction due to ______.
With the help of any one example explain Alien species invasion as one of the causes of Biodiversity losses.
Acronym for IUCN is ____________.
Which among the following is/are the type( s) of extinction of species?
Which one of the following is a natural cause of extinction of flora and fauna?
Threatened species are those which ______.
The extinction of passenger pigeon was due to ______.
Which of the following is/are endangered plant species?
What does 'Red' indicate in the IUCN Red list (2004)?
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?
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 is a pair of endangered species?
Which one of the following groups faces maximum threat of extinction?
Write any three criteria on which different types of reflexes are based.
Match List - I with List - IІ.
| List - I | List - II |
| A. The Evil Quartet | I. Cryopreservation |
| B. Ex-situ conservation | ΙI. Alien species invasion |
| C. Lantana camara | III. Causes of biodiversity losses |
| D. Dodo | IV. Extinction |
Choose the option with all correct matches.
Damage to biodiversity takes place due to natural reasons which includes the following EXCEPТ:
