Unit 3 · Evolution and Diversity of Organisms
Artificial and natural classification, the history from Aristotle to Woese, the molecular basis of the present system, the ranks from domain to species and the three domains with their kingdoms.
Deshapriya Senevirathne. B.Sc. (Hons) Biology Special, University of Peradeniya — graduated with a class pass. All the content and lessons in A/L Biology on Paadama are reviewed by Deshapriya Senevirathne, and the lessons are taught by him.