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CGP EDU Academic Team
Published on: August 27, 2026
Organisms which first colonizes the base rocks is
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Verified by ExpertsThe correct answer is:
D
(d) During primary succession on bare rocks (lithosere), lichens are the first pioneer species to arrive. They secrete acids to chemically weather the rock and create a thin layer of soil. Mosses typically colonise immediately after or alongside lichens, using their structures to trap more soil and moisture, further preparing the habitat for higher plants.
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