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Masja [62]
4 years ago
14

The condition known as jaundice (yellow skin and eyes) is a result of a build-up of bilirubin and is usually a sign of liver mal

function. Newborn human infants often go through a period of fetal jaundice in which they turn yellow. This usually reflects not a liver malfunction, but rather the destruction of huge numbers of red blood cells. Why would newborns be cashing in so many red blood cells? In serious cases, neonates are often put under special lights that promote the breakdown of bilirubin. However, recent evidence demonstrates that bilirubin is a potent anti-oxidant. Why would a neonate need so many anti-oxidants?
Biology
1 answer:
amid [387]4 years ago
7 0

Answer:

Why would newborns be cashing in so many red blood cells?

The possibe sources for the hematocrit are influx of RBC from other sources to the Fetus. e.g.,  leakage of RBC from the twin child in case of twin pregnancy, possible overproduction of RBC in the fetus,Leakage of some RBC through the umbilical cord  to the child close to delivery.

Why would noenates need so much antioxidants

The increased oxidative stress in neonates with Jaundice, leads to loss of antioxidants and ascorbic acids.The loses disrupted their metabolism and  therefore the natural ability to fight the oxidative stress.

Consequently,increase in the oxidative stress couple with lack of antioxidant leads to neural cell death.

Therefore, antioxodant is needed to prevent neural cell death and to withstand oxidative stress.

Explanation:

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"which body cavity would be opened for a total knee joint replacement"
Xelga [282]

Answer;

-Synovial cavity

Explanation;

-The synovial cavity/joint is filled with synovial fluid. A synovial joint contains a synovial cavity and dense, irregular connective tissue that forms the articular capsule normally associated with accessory ligaments.

-A synovial joint occurs at articulating bones to allow movement. It is distinguished by a surrounding synovial capsule.The bones of a synovial joint are surrounded by a synovial capsule, which secretes synovial fluid to lubricate and nourish the joint while acting as a shock absorber.

7 0
3 years ago
Brown hair is dominant over red hair. What will the genotypes and phenotypes of the offspring of a cross between a homozygous br
Artemon [7]

Answer:

1) In the first step, we need to predict the possible alleles for the cross. The dominant allele will be written with a capital letter. The recessive allele will be written with a small letter. Hence, the allele for brown hair colour will be B and the allele for red hair colour will be b.

2) In the second step, we need to determine the genotype of the parents. The genotype of the homozygous dominant parent will be BB. The genotype of the heterozygous brown hair colour will be Bb.

3) The punnet square for cross between these parents can be shown as follows:

        B           b

B     BB       Bb

B     BB       Bb

4) In the fourth step, lets determine the phenotype of the children. The phenotype of all the offsprings born will be brown hair colour.

5) The genotype from the punnet square shows that there is a 50% chance that the offsprings will be heterozygous dominant (Bb) for brown hair colour and their will be a 50% chance that the child born will be homozygous dominant (BB).

4 0
3 years ago
Both natural processes and human activity are causing some of Earth's permanent bodies of ice to melt. If enough of this ice mel
Nitella [24]

Answer:

The water will get more warm fresh water.

Explanation:

7 0
3 years ago
What body systems are related to taking in nutrients and expelling them from the body
Kay [80]
The digestive system

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4 years ago
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Why is the nucleus considered the command center of the cell?
olganol [36]
The nucleus is in the middle of a cell
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3 years ago
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