FSc Biology Book1, CH 13, LEC 1; Introduction to Gaseous Exchange

The Video lecture from Gaseous Exchange (F.Sc. First Year Biology) covers the brief description of why living organisms need respiratory gas exchange and what are the advantages and disadvantages gaseous exchange in air and gaseous exchange in water. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab