The pioneer organisms in ecological succession are usually the? by Sunday | Sep 11 | Biology JAMB | 0 comments A. mosses B. lichens C. ferns D. algae Correct Answer: Option B – lichens Users Also Read These:The following observations concerning succession are…Climax communities in a biotic succession are…Briefly explain FOUR ecological factors that affect…The following are associated with succession EXCEPT?In ecological succession, since Iichens grow on bare…