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dimaraw [331]
3 years ago
11

the disease erythroblastosis fetalis (also called hemolytic disease of the newborn) develops in a fetus or a newborn infant with

Rh-positive blood and an Rh-negative mother. Symptoms results when maternal anti-Rh antibodies cross the placenta and interact with the fetus' erythrocytes. Why are the children of Rh-positive mothers not ay risk for this disease
Biology
1 answer:
Marianna [84]3 years ago
7 0

Answer:

Explanation:

Hemolytic Disease of the newborn (HDN, Erythroblastosis Fetalis) is a blood disorder occurring at or around birth, where the blood groups of the mother and baby are not compatible. It occurs when the antibodies from a Rhesus negative (Rh-negative) mother, who has been sensitized from previous pregnancies or other means (transfusion etc), gives birth to an Rh-positive baby, and the blood of the mother and the baby eventually mixes. This causes the anti-Rhesus antibodies in the mother's blood to attack the Rhesus antigen (Also Called Anti-D antigen) on the baby's red blood cells, causing hemolysis that leads to several unpleasant symptoms.

Children of Rh-positive mothers are not at risk of developing HDN, because the mother does not produce anti-Rh antibodies since she is positive, hence there will be no antibodies to cross the placenta and react with the baby's rhesus antigens for Rh-positive babies.

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Ksivusya [100]

Energy conservation and efficiency are the major “sources” of energy because these methods make available more energy sources and reduce wastage of it.

<h3>What is energy efficiency and why is it important?</h3>

Energy efficiency refers to using less energy to perform a task. In this method, reduce or eliminate energy wastage. Energy efficiency brings many benefits such as reducing greenhouse gas emissions, reducing demand for energy imports, and reducing our costs on a household and economy.

So we can conclude that energy conservation and efficiency are the major “sources” of energy because these methods make available more energy sources and reduce wastage of it.

Learn more about energy conservation here: brainly.com/question/12306849

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5 0
2 years ago
One should always keep food covered because to prevent the germs
Zina [86]

Answer:

True

Explanation:

Also, reheating food that was sitting all night/evening doesn’t kill germs/bacteria.

4 0
3 years ago
Which planes when passed through the body would result in 2 sections with each section containing a piece of the heart and a pie
Ludmilka [50]
The transverse plane is one of the planes of the body that describes the location of the parts in relation to each other. The transverse plane also known as axial plane or horizontal plane divides the body into 2 parts namely the superior or the head part and the inferior or the tail part.If the body would be divided in 2 sections with each containing a heart and both lungs it is called a transverse plane.
8 0
3 years ago
There’s a blank before it but waves are longitudinal waves cause by an earthquake
Svet_ta [14]

Answer:

not entirely sure what your asking but have some notes

Explanation:

Earthquakes generate three types of seismic waves: P (primary) waves, S (secondary) waves and surface waves, which arrive at seismic recording stations one after another. Both P and S waves penetrate the interior of the Earth while surface waves do not. Due to this, P and S waves are known as "body waves". Surface waves arrive last and are the least interesting to seismic tomographers because they don't penetrate deep inside the Earth, therfore provide little information about inacessible terrain.

Below, some of the major differences between P and S waves are highlighted.

P Waves:-

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4 0
2 years ago
The microtubule-organizing center found in animal cells is an identifiable structure present during all phases of the cell cycle
REY [17]

Answer:

b.) centrosome

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8 0
4 years ago
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