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प्रश्न
Suggest two practices giving one example of each, that help protect rare or threatened species.
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उत्तर
- By using cryopreservation (preservation at –196ºC) technique, sperm, eggs, tissues, and embryos can be stored for a long period in gene banks, seed banks, etc.
- Plants are propagated in vitro using tissue culture methods.
संबंधित प्रश्न
With the help of any one example explain Alien species invasion as one of the causes of Biodiversity losses.
______ refers to the conservation of endangered species outside their natural habitats.
Which among the following is/are the type( s) of extinction of species?
Which of the following is not a cause for loss of biodiversity?
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?
Explain as to how protection of biodiversity hot spots alone can reduce up to 30% of the current rate of species extinction.
How many Biodiversity hotspots have been identified around the world?
List any three major causes of loss of biodiversity.
"Forests provide intangible benefits to us." Explain by taking three different areas, how.
Western Ghats have a large number of plant and animal species that are not found anywhere else. Which of the following terms will you use to notify such species?
Consider the following statements:
- Statement I: Endemism and accelerated habitat loss are characteristics of biodiversity hotspots.
- Statement II: Gene bank is an in-situ method of biodiversity conservation.
Choose the correct answer from the options given below.
Decline in the population of Indian native fishes due to introduction of Clarias gariepinus in river Yamuna can be catogoriesd as ______.
Which one of the following is a pair of endangered species?
The IUCN Red Data List (2004) in the last 500 years documents the extinction of nearly 784 species including ______.
The sixth extinction in progress currently is different from all previous extinctions on earth as it is ______.
Give definitions of Extinct species.
What are the reasons for loss of biodiversity?
These are regarded as major causes of biodiversity loss:
- Over exploitation
- Co-extinction
- Mutation
- Habitat loss and fragmentation
- Migration
Choose the correct option:
