What is the most important safety rule for you to follow in the laboratory

Me the formula cacl2 represents the compound

Vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a.) antibody, antibiotic b.) antigen, antibody c.)antibiotic, antibody d.)antibody, antigen

Give examples of selective advantage of organism’s body part/organ