Answer:
mosses or lichens, algae fungi
this organisms are knows as pioneer species because they are the first species present.
The molecular clock is a scientific technique which presents a means of estimating evolutionary rates and timescales using genetic data. It uses mutation rate of biomolecules when two or more life forms diverged to estimate the time. Answer is B.
Light that appears white or nearly white to humans is made up of spectrum of visible light i.e. combination of violet, indigo, blue, green, yellow, orange and red.
Primase enzyme catalyze the formation of an rna primer