Answer:
vitamin C
Explanation:
Ascorbic acid or vitamin C is a monosaccharide oxidation-reduction (redox) catalyst found in both animals and plants.[76] As one of the enzymes needed to make ascorbic acid has been lost by mutation during primate evolution, humans must obtain it from their diet; it is therefore a dietary vitamin.[76][77] Most other animals are able to produce this compound in their bodies and do not require it in their diets.[78] Ascorbic acid is required for the conversion of the procollagen to collagen by oxidizing proline residues to hydroxyproline.[76] In other cells, it is maintained in its reduced form by reaction with glutathione, which can be catalysed by protein disulfide isomerase and glutaredoxins.[79][80] Ascorbic acid is a redox catalyst which can reduce, and thereby neutralize, reactive oxygen species such as hydrogen peroxide.[76][81] In addition to its direct antioxidant effects, ascorbic acid is also a substrate for the redox enzyme ascorbate peroxidase, a function that is used in stress resistance in plants.[82] Ascorbic acid is present at high levels in all parts of plants and can reach concentrations of 20 millimolar in chloroplasts.
Mesopotamia belonged to a region located in the Middle East (predominantly in present-day Iraq) between two major rivers: the Tigris and the Euphrates. Their natural conditions, mainly because of soil fertility, allowed small villages to be formed on their territory.
Soil fertility was ensured by the flooding cycle of the two rivers that soaked the soil with organic material and allowed the development of agriculture and animal husbandry. The word "Mesopotamia" originates from the Greek language and means "land between rivers" in a direct mention of the importance of rivers for that region.
The political perception on all people is that they perceive the mediators and the media as always biased against their position.
<h3>What is a
political perception?</h3>
A political perception refers to the public perception towards the politicians and the media who work for them
In conclusion, the political perception on all people is that they perceive the mediators and the media as always biased against their position.
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