specimen

Subject: specimen Sat Mar 27, 2010 10:38 am

PART 1
WHAT R THE CONTRIBUTIONS BY SCIENTIST JULIAN SACH ????
DIFFERENCE BTW VACCINATION & STERILIZATION ???
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JULIAN SACH= sach's solution(nutrient media)

VACCINATION is process introducing dead or weakened antigen in order to induce aquired immunity against certain disease. whereas,
STERILIZATION is the process of effectively killing bacteria or other harmful microbes from a surface, equipment, article of food or medication, or biological culture medium.
it can be carried out by application of heat or chemicals........