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Contamination of air, water, soil, and food products are the major cause for the entry of harmful elements into human body. Results also showed that Cd, Cu, Pb contents in hair and nail of female subjects are more in junk food consumers taking from street food venders and restaurants. For man food forms the major non occupational source of exposure to heavy metals. Although human body has got homeostatic mechanism that enable them to tolerate, small fluctuation in the, intake of such metals above and below certain permissible or recommended levels will have devastating acute and chronic...

The Book provides Multiple Choice Questions (MCQ's)-I pertaining to topics covered in BSc Zoology . These MCQ's have been prepared with the intention to help students revise all the fundamental concepts of chapters quickly and effectively. This book caters to the need of the candidates/students aspiring for Competitive Examinations.We hope that our attempt of making Zoology MCQ's may prove to be beneficial to the faculty and students. We shall be grateful and look forward to comments, suggestions and criticism from our readers. Your valuable suggestions or highlighting errors will definitely...