Answer:
Naturally Acquired Passive Immunity
Explanation:
Naturally acquired passive immunity can be described as a type of immunity in which antibodies are transferred from the mother to the infant through placenta or through breast feeding. This type of immunity tends to protect the child until the child can develop his/her own immune system. However, this type of immunity is not life long and usually remains from a period of few weeks to 6 months.
The correct answer is "serving their child only foods of plant origin."
A vegan is a person who only eats foods derived from plants.
Lymph vessels act as reservoirs for plasma and other substances including cells that have leaked from the vascular system and transport lymph fluid back from the tissues to the circulatory system.
