AP BIOLOGY

Detailed explanation-1: -Breast milk also contains antibodies, which means that babies who are breastfed have passive immunity for longer. The thick yellowish milk (colostrum) produced for the first few days following birth is particularly rich in antibodies.

Detailed explanation-2: -A type of immunity that occurs when a person is given antibodies rather than making them through his or her own immune system. For example, passive immunity occurs when a baby receives a mother’s antibodies through the placenta or breast milk.

Detailed explanation-3: -Key Points. Immunity is transferred through the placenta in the form of antibodies, mainly IgG and IgA. Natural passive immunity can also be transferred through breast milk. Natural passive immunity is short-lived after the birth of the child.

Detailed explanation-4: -Passive immunity is provided when a person is given antibodies to a disease rather than producing them through his or her own immune system. A newborn baby acquires passive immunity from its mother through the placenta.

Detailed explanation-5: -Antibodies are a known benefit of breastfeeding. A specific type of antibody found in breastmilk, IgA, protects infants from infections.