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प्रश्न
Write a short note on biodiversity.
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उत्तर
- Biodiversity refers to the variety of living organisms found in a particular area. It exists because of the presence of different life forms and diverse ecosystems that support them. Biodiversity can be observed at three levels: genetic diversity, species diversity, and ecosystem diversity.
- Genetic diversity refers to the variations among individuals of the same species due to differences in their genes. Species diversity refers to the variety of plant, animal, and microbial species present in a region. Ecosystem diversity refers to the variety of ecosystems, such as forests, grasslands, deserts, and wetlands, found in an area.
- Human activities and developmental processes have posed serious threats to biodiversity. Therefore, special efforts are being made to conserve and restore threatened biodiversity. These measures include establishing wildlife sanctuaries, national parks, biodiversity hotspots, and biosphere reserves. In addition, various conservation projects are undertaken to protect endangered species and preserve the rich biodiversity of our planet.
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संबंधित प्रश्न
__________ is a rare species.
___________ is an indeterminate species.
Complete the table.
| Endangered Heritage Places of the Country | Threatened / endangered species of an animal | Reasons |
| Western ghat | ||
| Rhino | ||
| Tiger |
Explain the classification of threatened species of animals with an example.
What is endangered species? Give two examples.
Pesticides and chemicals used to get rid of insects, pests or weeds, poison the plants and animals.
How to save endangered species? (any 2 methods)
Each year ______ is celebrated as ‘World Biodiversity Day’.
Complete the correlation:
Western ghat : Asiatic lion :: Sunderban sanctuary : ______.
Give an example of the following:
Endangered Species
Which organisation, formerly known as the International Union for the Conservation of Nature and Natural Resources (IUCN), maintains detailed records and publishes lists of species at risk of extinction?
Which parameter for assessment considers where a species occurs now as well as where it occurred earlier?
Which parameter for assessment concerns both the amount and condition of the habitat occupied by a species?
Which original conservation category applies when natural regeneration cannot keep pace with environmental or human-driven destruction?
Which modern category means that the last individual has died and no living members are recorded?
Which modern category indicates an extremely high risk of extinction and very few surviving members, such as 50 individuals?
Which modern category means that available data regarding a species' risk of extinction is lacking?
