14.8 Closed Circulatory System
This video lecture from Transport (F.Sc. First Year Biology) covers closed circulatory system. Salient features of a closed circulatory system and evolution of circulatory system of vertebrates have been discussed in detail. 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.