Answer:
A field research
Explanation:
Carla noticed that most students got to the college around 8:00 am, and proposed that in order to get a good parking spot, a student would need to get to the college before 7:45 am. She decided to observe for a few weeks to see if she was right. This type of research is <u>a field research</u>.
Field research is a type of research that involves the study, observation, interaction and understanding your test subjects while they are in their natural state or environment. Observational studies, survey research and data collection are examples of field research. Notice that Carla did not notify anyone of the study, he simply observed and the individuals were in their natural state or environment, it was an observational study.
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.
The major reason for Zheng He's voyages during the 15th century was to increase the importance of Chinese trade as well as the reputation of his nation, China. The largest port in the world at that time was Calcutta in India where the Chinese spent more time trading with the locals.
<span>glass, air, plastic, rubber</span>
The correct answer is C) bicameralism.
A country is federal if it satisfies all of the following criteria EXCEPT bicameralism.
We can consider a government "federal" if satisfies the following characteristics: a geopolitical division, independence, and a direct government.
What results from the federal system of government in the United States is that State governments have some powers that the federal government does not have.
The United States government is a federal government with three branches under the system of checks and balances. The executive branch, the legislative branch, and the judicial branch. Under this system, none of the three branches has more power than the other.
