In the first pregnancy of an Rh-negative mother with an Rh-positive child, why are there usually NO symptoms of erythroblastosis fetalis?
a. antibodies from the mother's blood cannot cross over to the child
b. the immune system of first child develops faster than that of the second or later children
c. blood between mother and child does not mix until birth
d. none of the listed responses are correct
Answer: c. blood between mother and child does not mix until birth
You might also like to view...
An important protein in the activation of the alternative pathway of complement activation is
A) properdin. B) interferon. C) histamine. D) fibrin. E) C1.
In addition to storage and mechanical breakdown of food, the stomach ________.
A) initiates protein digestion and denatures proteins B) is the first site where absorption takes place C) is the only place where fats are completely digested D) is the first site where chemical digestion of starch takes place
Digestion of starch starts in the stomach.
Answer the following statement true (T) or false (F)
What is postnatal development?
A) Postnatal development refers to the events that occur during the first 2 months after fertilization. B) Postnatal development begins at the 9th week and continues until birth. C) Postnatal development begins at birth and continues to maturity. D) Postnatal development refers to the events of the first and second trimesters. E) Postnatal development refers to the events of the third trimester.