Question

what is lichens write it's type use ​

Answer 1

Answer:

a very small grey or yellow plant that spreads over the surface of rocks, walls and trees and does not have any flowers

Answer 2

Answer:

Heya...... ❤..

Here's ur answer :

• The lichens are slow growing, long living organisms, occurring in wide variety of places ranging from sea to shore to Arctic and Antarctic regions of the earth.
• Theophrastus (300 B.C.) was the first to use the word lichen.
• Lichens are formed by close association of two different partners (organisms) one of which is an algal component and the other is fungal component.
• The algal component is called phycobiont or photobiont and and it mostly belongs to Chlorophyceae (green algae) or cynobacteria (blue green algae).
• The fungal component is called mycobiont and it mostly belongs to Ascomycetes and rarely Basidiomycetes or Deuteromycetes.
• The lichens are distributed in a wide variety of habitats.
• They grow on tree trunks, decaying logs, and on soil too.
• They are found extreme climatic conditions such as on dry exposed rocks and also at snow covered Arctic and Antarctic poles.
• They are sensitive to air pollution and generally do not grow near cities.

»»There are three types of lichens :

1. Crustose lichens
2. Foliose lichens
3. Fruticose lichens....... ««

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