Which one of the following animals shows discontinuous distribution?a)Green musclesb)Batsc)Lung fishesd)Pacific salmonsCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

When continuity of distribution of a species is broken by uninhabited areas which are sometimes very large stretches of oceans, it is called as a discontinuous distribution.
The three surviving genera of lungfishes show discontinuous distribution, as they occur in three different continents Protopterus in Africa, Lepidosiren in South America and Neoceratodus in Australia.
So, the correct answer is 'Lung Fishes'

Answer

Lung fishes show discontinues distribution due to possible changes like continental drift ....
...they are only found in America , Australia and Africa.....

Answer

Discontinuous Distribution Explained
Discontinuous distribution refers to a situation where species are found in isolated populations rather than being spread uniformly across a geographical area. Among the given options, lung fishes exemplify this concept.
Key Characteristics of Lung Fishes
- Geographical Isolation: Lung fishes are primarily found in freshwater habitats in Africa, South America, and Australia. These regions are separated by large distances, leading to isolated populations.
- Habitat Preferences: They inhabit stagnant or slow-moving waters, which further restricts their distribution. This specificity contributes to their discontinuous presence across continents.
- Evolutionary Significance: Lung fishes are considered primitive and have evolved unique adaptations (like lung-like structures for breathing air) that make them well-suited to their isolated environments.
Comparison with Other Options
- Green Mussels: These have a more continuous distribution in coastal areas, primarily in the Indo-Pacific region.
- Bats: While some species may have localized populations, many bats are widespread and can be found in diverse habitats around the world.
- Pacific Salmons: Although they have specific breeding grounds, their distribution is generally continuous along the Pacific coast and within river systems.
Conclusion
Lung fishes stand out as the best example of discontinuous distribution due to their isolated populations across different continents and specialized habitats. Understanding such distributions is crucial in conservation biology and ecology, as it highlights the significance of habitat preservation for unique species.

Answer

Lung fish

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