Biology, asked by Sachinsaini3251, 1 year ago

Write a note on lichens.

Answers

Answered by anjali30703
9

Answer:

LICHEN

  • Thallophytic plant.
  • Occurs at crusty patches or bushy growths on tree trunk or rock or bare grounds etc.
  • Lichen includes Blue green algae or algae and fungi.

Characteristics of lichen

  • It is the indicator of SO2 pollution.
  • Lichen is a example of mutualism.

Mutualism

  • The relation between two different species of organism that are interdependent , each gains benefits from other.
  • They are co-evolution.
  • They are co-extinction.
  • They are co-existance.
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