Posted: September 12th, 2015

An example of active immunity is the transfer of A. antibodies through the placenta. B. immunoglobulins through breastfeeding

An example of active immunity is the transfer of A. antibodies through the placenta. B. immunoglobulins through breastfeeding. C. antigens through vaccination. D. immune cells through a blood transfusion. 7. Which of the following classes of biological molecules include enzymes? A. Carbohydrates B. Lipids C. Proteins D. Vitamins

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