Chapter # 14 (Gaseous Exchange)
Mr. M. Zeeshan Qureshi has a long and distinguished career as a Biology Teacher of various locals and international Boards, trainer and writer of Biology Text books, Guide Books and Notes. He has been associated with many reputed and renowned educational institutions of Karachi, UAE, Canada, UK & Australia. Mr. Qureshi is Masters in Physiology and M. Phil Scholar in Biotechnology. He has achieved numerous Awards in teaching, training, counseling and curriculum development.