In the nature, which of the following is/are most likely to be found s

In the nature, which of the following is/are most likely to be found surviving on a surface without soil?

  • 1. Fern
  • 2. Lichen
  • 3. Moss
  • 4. Mushroom

Select the correct answer using the code given below.

1 and 4 only
2 only
2 and 3
1, 3 and 4
This question was previously asked in
UPSC IAS – 2021
The correct option is C. Lichens and mosses are pioneering organisms that can survive and grow on surfaces without soil.
– Lichens are symbiotic organisms (fungus and alga/cyanobacterium) known for their ability to colonize bare rock, bark, and other surfaces, obtaining nutrients primarily from the atmosphere and rain. They play a key role in primary succession, helping to break down rock and create conditions for other plants.
– Mosses are simple plants that can grow in various environments, including on rocks, walls, and bark, often requiring moisture but little or no soil. They can survive on thin layers of accumulated organic matter or damp surfaces.
– Ferns are vascular plants that typically require soil for their roots. While some ferns can grow epiphytically on trees, they generally require some form of accumulated organic matter or moisture-retaining substrate, not just a bare surface without soil.
– Mushrooms are the fruiting bodies of fungi. Fungi are heterotrophic and obtain nutrients by decomposing organic matter or through parasitic/symbiotic relationships. While some fungi grow on wood (which isn’t soil but is an organic substrate they consume), they are not typically found *surviving* on bare inorganic surfaces like rock or concrete without any organic matter present.
Lichens and mosses are often among the first organisms to colonize new or barren surfaces, making them ideal examples of life surviving without soil.