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Anastaziya [24]
3 years ago
11

Vitamin D precursors are produced in the skin in the presence of sunlight. These chemicals are important for the transport of so

dium in our intestines. Vitamin D precursors are produced in the skin in the presence of sunlight. These chemicals are important for the transport of sodium in our intestines. True False
Biology
1 answer:
denpristay [2]3 years ago
7 0

Answer:

False.

Explanation:

Vitamin D is very important for our body because it helps absorb, transport and fix calcium rather than sodium, as the question above says. In addition, this vitamin prevents disease and promotes bone maintenance. In order for her to perform her duties, one usually has to expose oneself to the sun.

One of the tips to find out if your body is missing this vitamin is to look at the skin. The sun is responsible for synthesizing vitamin D in the body. So if your skin is darker it is a sign of deficiency as pigment protects the skin and prevents absorption.

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Explanation:

Having filtered out small essential molecules from the blood - the kidneys must reabsorb the molecules which are needed, while allowing those molecules which are not needed to pass out in the urine. Therefore, the kidneys selectively reabsorb only those molecules which the body needs back in the bloodstream.

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Mary, who has type O blood, is expecting a child with her husband, who has type AB blood. A blood type test reveals that the bab
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No. If the parents are AB and O, the offspring can only be A or B.

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Systole is the ________ phase of the cardiac cycle.
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<span>B. Relaxation 

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The genes for miniature wings (m) and garnet eyes (g) are approximately 8 map units apart on chromosome 1 in Drosophila. Phenoty
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<h2>Answer is option " 2 & 4"</h2>

Explanation:

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