Working as Professor in biology department college of education, I have taught a different courses in BSc., MSc., and PhD. in college of education science, medicine, pharmacology, agriculture and dentistry. I been appointed as a dean of college of science for six and half years and director general for scientific research center for three years and vice president of Salahaddin University for eight years as well as head of biology department and secretary of Zanco Journal of pure and applied science and head of promotion committee.