answer plz......................
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Lichens is the right answer
yes - Iam sure. .i can give a neat explaination but i need some space. .i reported those two answers. .if moderator deletes any answers i will explain it neatly.
otherwise i will explain here itself in a simple manner.
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Lichens are amazing species which are helpful to us than we can imagine. In primary succession lichens conquer a bare rock and secrete acids which dissolve the rock and convert the rock into small pieces of fragments which helps in soil formation. this fertile soil later helps in growth of small plants.
With time the small plants are succeeded by higher plants and finally a stable forest is formed. so in primary succession without lichens a forest cannot be formed.
Lichens play a vital role in forming the forest community. In the absence of lichens Primary succession does not occur.
oh. .sorry. .i asked wrong question. .the specification in medicine would be in post graduation.
you said you want to become a cardiologist right?
Yes! Sure. .
so how good your rank must be inorder to get admission in best medicine College.
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