Advertisements
Advertisements
प्रश्न
Very short answer type question
What do you understand by the EW category of a living being?
Advertisements
उत्तर
- Extinct in the Wild (EW): A category containing those species whose members survive only in captivity.
- Members are seen only in captivity or as a naturalized population outside its historic range due to massive habitat loss.
APPEARS IN
संबंधित प्रश्न
Give any 'two' examples of endangered species
Dodo bird, stellar sea cow and passenger pigeon are few examples of extinction due to ______.
Species that possess a high risk of extinction with very few surviving members (50) are categorised as ____________ by the IUCN.
Which one of the following is a natural cause of extinction of flora and fauna?
Which of these is NOT amongst the effects of loss of biodiversity?
What could have triggered mass extinctions of species in the past?
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.
Explain the concept of "co-extinction" by taking two examples.
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.
These are regarded as major causes of biodiversity loss:
- Over exploitation
- Co-extinction
- Mutation
- Habitat loss and fragmentation
- Migration
Choose the correct option:
