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FSc Biology Book2, CH 25, LEC 4: Predation, Parasitism, Symbiosis and Mutualism

This video lecture from Ecosystem (F.Sc. second year Biology) covers information about different type of relationship among different organisms that include Predation-Prey relationship, Parasitism, Symbiosis, Commensalism and grazing. Find more e-learning material and educational video lectures in Urdu at These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.

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