Lichen represents an example of:
Last updated Jun 24, 2026
Correct Answer:
Option A —
Mutualism
Ecological Relationship: MutualismMutualism is a type of symbiotic interaction where both organisms involved benefit from the relationship. In the case of a lichen, it is not a single organism but a complex partnership between two distinct life forms:
The Phycobiont (Algae or Cyanobacteria): Through photosynthesis, this partner produces food (carbohydrates) for the entire structure.
The Mycobiont (Fungus): The fungus provides the structural framework, protects the algae from harsh environmental conditions, and absorbs water and essential minerals from the substrate.
Why other options are incorrect:
Commensalism: One organism benefits while the other is unaffected. In lichens, both are actively contributing and benefiting.
Amensalism: One organism is harmed or inhibited, while the other remains unaffected.
Parasitism: One organism (the parasite) benefits at the expense of the other (the host), which is harmed.
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
More Environment & Ecology questions
From across UPSC, JKPSC, and JKSSB papers — same subject, different years.
Consider the following statements:Assertion (A): Carbon dioxide, Methane and Nitrous oxide are considered greenhouse gases.
Reason (R): G...
What does eutrophication refer to?
What is the major cause of coral bleaching?
What happens when runoff on the ground is collected and allowed to be absorbed?
Consider the following statements:
1. Urban climatology refers to a specific branch of climatology concerned with interactions between ur...