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:Briefly explain FOUR ecological factors that affect…The main ecological problem facing intertidal organisms is?The association between two organisms in which one…Which of the following is not an outcome of…Direct Entry requirements for Botany and Ecological…