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svp [43]
3 years ago
11

Requirements for ______ increase by 50% during pregnancy. rev: 03_07_2017_qc_cs-81797

Biology
1 answer:
Alla [95]3 years ago
4 0
Requirements for folate increase by 50 % during pregnancy, Folate plays a vital role in the production of red blood cells and helps the fetus neural tube to develop into her brain and the spinal cord.  Pregnant women are advised to increase folate in their diet as folate is important in that it helps to prevent neural tube and other birth defects. Tube defects are serious birth defects of the spinal cord such as spina bifida and the brain such as anencephaly.
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Complete the sentence. The DNA strands are coiled around ________. This allows DNA to be packaged very efficiently.
Pepsi [2]

Answer:

a. Proteins

Explanation:

Chromosomes are made up of DNA tightly coiled many times around proteins

3 0
3 years ago
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Which is most likely true about water in chemical systems?
viktelen [127]

Answer:

Explanation:

Water dissolves nonpolar covalent substances.

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A person eats a large meal, which makes him feel sleepy. Later, he gets indigestion and throws up. The first event involves the
mariarad [96]

Answer:

When the parasympathetic nervous system (PSNS) is activated, it slows our heart and breathing rates, lowers blood pressure and promotes digestion. Our body enters a state of relaxation, and this relaxation breeds recovery

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<h3><em>Have a bless day :D <3</em></h3>
8 0
3 years ago
What is the stimulus of germination? *<br><br> Water<br> Sunlight<br> Gravity<br> Touch
MArishka [77]
Touch
Hope that is correct lol
4 0
3 years ago
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In pea plants, the allele for tall stalks (T) is dominant over the allele for short stalks (t). Suppose a cross between a tall p
vazorg [7]

Answer:

Tt - 1/2

tt - 1/2

Explanation:

<em>A cross between a tall pea plant and a short pea plant that produces 43 tall and 47 short offpsring (almost 1:1) is most likely a cross involving a heterozygous tall individual and a homozygous short individual.</em>

Tt   x   tt

Offspring = Tt   Tt   tt   tt (50% tall and 50% short)

If one of the tall offspring (Tt) is crossed with one of the short offspring (tt):

Tt   x   tt

Offspring = Tt   Tt   tt   tt

Genotype ratio = 2Tt:2tt

Hence,

Tt = 1/2

tt = 1/2

6 0
3 years ago
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