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poizon [28]
3 years ago
8

Circle or highlight the six most common elements found in living things. do the same thing for the five other elements that are

also found in the body in smaller quantities.
Biology
2 answers:
amid [387]3 years ago
8 0

Answer:

6- hydrogen carbon nitrogen oxygen phosphorus calcium

5-potassium, sulfur, sodium, chlorine, and magnesium.

Marrrta [24]3 years ago
3 0
What are the elements
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B. Stable ecosystems

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The main cause of the biodiversity experienced in rain forests is largely due to the stable ecosystems that they enjoy.

A stable ecosystem is a sustainable one that does not change too much over the course of time.

Most organisms and the diverse life forms are easily nourished by the provisions made available by nature in such regions.

  • Most rain forest receives a large amount of solar radiation and energy all year round as the sun is directly overhead here.
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  • This coupled with other factors whereby organisms have specially adapted to environmental conditions makes a rain forest very biodiverse with life forms.
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Histone modifications are post-translational modifications of histone protein that can affect gene expression by altering chromatin structure or recruiting histone modifiers.The most common modifications are methylation, phosphorylation, acetylation and ubiquitylation. All of them affect the binding affinity between histones and DNA and thus loosening (gene activation) or tightening (gene repression) the condensed DNA.

Histone methylation is a transfer of methyl group by histone methyltransferases to lysine or arginine amino acid of protein. Effect of methylation depends on the type of protein that is modified. Demethylation is the reverse process.

Histone acetylation is the process of adding of an acetyl group(by  histone acetyltransferases) to histone proteins and it can also activate or inhibit the gene expression. Deacetilation is reverse process.

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