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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
Acronym for IUCN is ____________.
Species that possess a high risk of extinction with very few surviving members (50) are categorised as ____________ by the IUCN.
Which among the following is a TRUE statement?
Currently, ______ mass extinction is considered to be the progressing at an alarming rate due to the loss of biodiversity.
What is common to lantana Eichhomia and African catfish?
Which of the following statements is correct?
Which among the following forests is known as the "lungs of the planet earth"?
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 does 'Red' indicate in the IUCN Red list (2004)?
Discuss one example, based on your day-to-day observations, showing how loss of one species may lead to the extinction of another.
What criteria should one use in categorizing a species as threatened?
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.
Enlist two criteria that are used to identify a region for maximum protection as 'Biodiversity hotspots'.
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?
Mention any two places where the ex-situ conservation is undertaken.
Which one of the following groups faces maximum threat of extinction?
Give definitions of Invasive species.
Write any three criteria on which different types of reflexes are based.
What are the reasons for loss of biodiversity?
