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प्रश्न
The extinction of passenger pigeon was due to ______.
पर्याय
Increased number of predatory birds.
Over exploitation by humans
Non- availability of the food
Bird flu virus infection
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उत्तर
The extinction of passenger pigeon was due to over exploitation by humans.
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संबंधित प्रश्न
Substantiate with the help of one example that in an ecosystem mutualists
are also one of the major causes of biodiversity loss.
Dodo bird, stellar sea cow and passenger pigeon are few examples of extinction due to ______.
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 a TRUE statement?
'The Evil Quartet' is a concept which describes the ______.
What are the major factors that are responsible for the loss of biodiversity? What steps are needed to prevent them?
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
Which of the following statements is correct?
Which of the following are major causes of species losses in a geographical region?
IUCN means
List any two major causes other than anthropogenic causes of the loss of biodiversity.
There was a loss of biodiversity in the ecosystem due to a new construction project in that area. What would be its impact on the ecosystem? State any three.
Many species like Stellar's Sea cow and passenger pigeon have been driven to the brink of extinction. Which of the following describes this situation?
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.
Red Data Book is maintained by ______.
The sixth extinction in progress currently is different from all previous extinctions on earth as it is ______.
Write any three criteria on which different types of reflexes are based.
Damage to biodiversity takes place due to natural reasons which includes the following EXCEPТ:
