It is only vehicles? Or can it be other things too. But trains also require a ticket.
The correct answer is for all clinical trials.
NIH refers to the National Institute of Health which requires every researcher to describe data and safety monitoring when it comes to all clinical trials. Clinical trials refer to experiments conducted within clinical research.
Answer:
Option B = a conflict between an individual role and group goals.
Explanation:
In the question above we can see that one out of the group members( Bert) make fun of almost everything and at first the other members in the group look at Bert as a someone that is so funny but later they are do not love his CONSTANT jokes and unseriousness anymore.
The reason the other group members became unhappy with Bert is because Bert is not abiding with the group goals. Bert role in the group was never to be unserious but that is what he is doing so there will surely be a Conflict between Bert roles in the group and the group goals. Work is work, there is no harm in little fun though, but work is always work that is the reason they brought the group together in the first place.
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.