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Katarina [22]
3 years ago
5

Vitamins are essential to any diet because _____.

Biology
2 answers:
Helen [10]3 years ago
6 0
<span>they aid in building muscle they act as ions in the nervous system and transport neural messages</span>
fgiga [73]3 years ago
3 0

Answer:  they help in building bone.

Explanation:

Vitamins are the organic substances which are essential for the diet in trace amounts but plays important roles which can help in promoting and regulating the growth, maintenance of health and reproduction.

Most importantly Vitamin D also help in building up the bones. The Vitamin D is responsible for the absorption of calcium from food which can help in building up the bones.      

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Talja [164]

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6 0
3 years ago
Give an example of a prokaryotic cell.
ElenaW [278]

Answer:

Bacteria are examples of the prokaryotic cell type. ... In general, prokaryotic cells are those that do not have a membrane-bound nucleus. In fact "pro-karyotic" is Greek for "before nucleus". Besides bacteria, the cyanobacteria (blue-green algae) are a major group of prokaryotes.

7 0
3 years ago
Read 2 more answers
Can you tell if this plate boundary is divergent or convergent ? Explain
liq [111]

Answer:

Divergent

Explanation:

Assuming you mean boundary in the Atlantic, they pull away from eachother. Here "Diverge".

7 0
4 years ago
Read 2 more answers
Describe the difference between the melting points of ethene and poly (ethene)
koban [17]

Answer: Poly(ethene) has a higher melting point than ethene. The reason can be seen in the explanation below.

Explanation:

Ethene is one of the most important alkene hydrocarbons which is one of the main products obtained during the cracking of the gas oil fraction of petroleum.

Polymerization is a process whereby two or more simple molecules are linked to form a much larger molecule usually called polymers. Poly( ethene) is formed when ethene and it's derivatives undergoes polymerization reaction. Therefore poly( ethene) is a polymer of ethene.

To describe the reason why there is higher melting point in poly (ethene) than ethene is that poly( ethene) consists of very long chain carbon atoms which are held together by a strong covalent bonds. There are greater intermolecular forces between the long chains compared with smaller simple molecules like ethene.

4 0
3 years ago
he G-protein-linked receptor is located ___________________. When GDP is attached to the G protein the messenger is considered _
nikdorinn [45]

Answer:

located... on the plasma membrane  

is considered... inactive

the messenger is considered... to be active

All of this is brought on by a.... signal molecule

will shut down quickly when the.... signal molecule

Explanation:

The G protein-coupled receptors (GPCRs) are transmembrane proteins found on the plasma membrane. GPCRs are considered to be the most diverse group of transmembrane receptors in eukaryotic cells. These proteins (GPCRs) bind to signaling molecules to trigger signaling pathways through Guanine nucleotide-binding proteins (G-proteins). G proteins are signaling proteins (for example, Ras protein) that bind both GTP and GDP. After the signaling molecule binds to GPCR, GTP is hydrolyzed by the G-protein in a process that triggers specific signaling pathways (for example, activation of the production of second messengers).

3 0
3 years ago
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