A) mycorrhiza
B) fairy ring
C) lichen
D) none of these.
Correct Answer: C
Solution :
: Lichens represent an unique example of mutualism (symbiosis) between algae and fungi. In lichens, the nutrition is algae like and reproduction is fungi like and both partners benefit each other. They represent an obligatory and permanent partnership. Lichens are pioneer of xerosere as they are capable of growing even on barren rock surface where nutrition and moisture are available in negligible amount.
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