Answer:
The most ancient China civilization was located with the Yellow River to the north and the Yangtze to the southern.
The first description of the DNA (deoxyribonucleic acid)chain was done by Watson and Crick in 1953, the nucleotides that constitute the DNA are four: cytosine (C), guanine (G), timine (T) and adenine (A). When doing a model is essential to remember that cytosine ONLY joins guanine and timine only link adenine, this is due to the size and chemical properties of each molecule. Later, another related and similar and molecule was discovered, the ribonucleic acid or RNA, which also is constructed by nucleotides.
In both cases, the nucleotides are compound of 3 main components: a nitrogen base, a pentose and a phosphate. When the molecule lacks the phosphate group, is called nucleoside. Depending on the chain ( DNA or RNA) the nitrogen base derives from purine (adenine and guanine) or pyrimidine (cytosine or timine) just in the RNA instead of timine is uracil (U)
The union is established between adjacent molecules through the phosphate, while among each other through the nitrogen base-remember C=G and T or U=A. The core of each molecule is the pentose. Therefore the best representation of the molecule is attached
References
Watson, J. D., & Crick, F. H. (1953, January). The structure of DNA. In Cold Spring Harbor symposia on quantitative biology (Vol. 18, pp. 123-131). Cold Spring Harbor Laboratory Press.
Answer:
The answer is A) relative motion.
Explanation:
As the name suggests, relative motion refers to the perceived velocity of a point in relation to another.
Some more instances would be the perceived velocity of a car if you're standing the next to the road (the car moves fast), if you're driving a car and moving at the same speed (the other car appears static) or if you're driving the opposite direction (the other car appars to move at double the speed).
It's important to notice that relative motion can be positve or negative.
Answer:
The correct answer is option A.
Explanation:
An author may resort to a device called "direct address" when writing a text. This device is used to directly address the reader and make him or her feel included in the text. In addition, authors may convince the audience to share a specific point of view, especially in argumentative texts, when using this resource to express a personal opinion. However, to compensate subjectiveness, effective writing combines direct address with objective information, such as facts, statistics, etc. Both, objective information and direct address should be written within the same paragraph to create a balance between subjectiveness and objectiveness. Thus, option A is not a reason to break a message into sub-messages. Options B, C, and D are in fact, reasons to divide a message because they represent subsections of a text that help the reader understand the different parts of it.