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प्रश्न
Discuss one example, based on your day-to-day observations, showing how loss of one species may lead to the extinction of another.
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उत्तर
In case a species (x) becomes extinct, the plant and animal species (M, N, O, Z) associated within an obligatory way also become extinct. For example.
- When a fish species which is a host for a number of parasites becomes extinct the parasite species which are uniquely dependent on the host fish will also become extinct.
- The insects may be polyphagous (feed on more than one plant species) or monophagous (feed on only one particular plant species) in nature. The monophagous insect species are valuable and may become extinct if the plant species upon which it feeds becomes extinct.
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संबंधित प्रश्न
Very short answer type question
What do you understand by the EW category of a living being?
Acronym for IUCN is ____________.
'The Evil Quartet' is a concept which describes the ______.
Accroding to IUCN Red list, the status of Antilope is ____________.
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?
IUCN means
What is common to the following plants: Nepenthes, Psilotum, Rauwolfia and Aconitum?
What is common to the species shown in figures A and B?
 |
 |
| A | B |
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.
Which of the following suits hotspots in ecological terminology?
Gametes of threatened species can be preserved in viable and fertile conditions for long periods using ______.
When a species goes extinct in one area, it is often desirable to re-introduce the species from other populations. A major problem with this approach is that ______.
Which of the following regions of the globe exhibits highest species diversity?
Give definitions of Endangered species.
What are the reasons for loss of biodiversity?
Name any two factors responsible for the loss of biodiversity in a geographical region.
Which one of the following is NOT one of the 'Evil Quartet' responsible for the loss of biodiversity?
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.
