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Question: Answered & Verified by Expert
There exists a close association between the alga and the fungus within a lichen. The fungus:
BiologyOrganisms and PopulationsNEETNEET 2005
Options:
  • A provides protection, anchorage and absorption for the algae
  • B provides food for the alga
  • C fixes the atmospheric nitrogen for the alga
  • D releases oxygen for the alga.
Solution:
2573 Upvotes Verified Answer
The correct answer is: provides protection, anchorage and absorption for the algae
Lichens are unique, double organisms that consist of two unrelated components, an alga and/ or cyanobacterium (photobiont) and a fungus (mycobiont). Lichens are unique, double organisms that consist of two unrelated components, an alga and/or cyanobacterium (photobiont) and a fungus (mycobiont)
Related Theory
Lichens have a body called a thallus, an outer, tightly packed fungal layer called a cortex, and an inner, loosely packed fungal layer called a medulla. Lichens use hyphal bundles called rhizines to attach to the substrate.

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