The risk of maternal antibodies crossing the placenta and destroying the fetal red blood cells increases with each pregnancy. So, the outcome of the first RH+ baby is different from the second one.
<u>EXPLANATION: </u>
RH+ is a specific antigen present on the RBCs. A person that inherits these antigens has blood group RH+ and the ones who lack them have RH- blood group. Issues occur when the woman is RH- and the fetus is RH+ is the antibodies that cross the placenta and affect the baby's RBCs negatively.
This incompatibility occurs when father is RH+ and mother is RH-. The first-time pregnancy doesn't create much of the incompatibility. But if the fetus is RH+ the second time, results in life-threatening problems. During first time pregnancy, the RH+ antibodies are not present in the mother's blood.
But during the birth when placenta ruptures, the bloodstream enters into the mother's body and it starts stimulating the antigens of RH+ blood. Now, during the second pregnancy when the antibodies transfer from the mother to the placenta, RH+ antigens react with the fetal blood cells and destroys them.
Answer:
Mass units are equal to Kg
Explanation:
As per the requirement of the question, the data provided to compute the mass units is
Density = 100 Kg/L
Mass = 1000 units
According to the given situation, the mass units is presented below:-
As we know that the
Mass units are equal to Kg
Therefore, for determining the mass units we simply equal the Kg.
D.Stomach.This is ur answer
John and Pat's occupation best explains the difference between their skin pigmentation. Since Pat works as a lifeguard, she is more exposed to the sun, which tans her skin. John, on the other hand, works in the theater, where he isn't exposed to sunlight that much, so he is much lighter than his twin, Pat.
Answer:
Autumn Equinox
Explanation:
The autumn equinox is the first day of the autumn season and occurs when the sun passes the equator moving from the northern to the southern hemisphere
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