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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
What are the major causes of species losses in a geographical region?
Can you think of a situation where we deliberately want to make a species extinct? How would you justify it?
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 ______.
Enlist any six categories into which a given species is placed once it has been thoroughly evaluated by IUCN.
Species that possess a high risk of extinction with very few surviving members (50) are categorised as ____________ by the IUCN.
Currently, ______ mass extinction is considered to be the progressing at an alarming rate due to the loss of biodiversity.
Which among the following is an in situ conservation method for national genetic resources?
Which of the following is not a cause for loss of biodiversity?
Which of the following statements is correct?
What is common to the species shown in figures A and B?
 |
 |
| A | B |
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.
Discuss one example, based on your day-to-day observations, showing how loss of one species may lead to the extinction of another.
How can you, as an individual, prevent the loss of biodiversity?
Gametes of threatened species can be preserved in viable and fertile conditions for long periods using ______.
What is ex-situ conservation?
Which one of the following is a pair of endangered species?
Name any two factors responsible for the loss of biodiversity in a geographical region.
