Hey there,
Question : <span>Which of these is always true of an “underground economy” transaction?
Answer : </span><span>It is unreported.
Hope this helps :))
<em>~Top♥</em>
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Answer and Explanation:
I believe the mistake in the original sentence is caused by a dangling modifier. Let's take a look at it:
<u>Preparing our dinner</u>, the smell of the chicken made Ben hungry.
The underlined portion is the modifier. Notice the sentence sounds strange, even ambiguous. <u>Usually, the modifier comes close to the noun it intends to modify. But, in this case, the closest noun is "smell". There is no way for the smell to be "preparing our dinner". </u>That is what makes the sentence sound so strange.
<u>To correct it, we need to change the modifier a bit in order to clarify to whom it refers. It could be "me", the speaker, or it could very well be Ben the one cooking dinner.</u> Take a look at the options and see how much clearer they sound:
- While I was preparing our dinner, the smell of the chicken made Ben hungry.
- While Ben was preparing our dinner, the smell of the chicken made him hungry.
Answer:
Viruses are prone to clumping together. Many times extensive sequence changes may not make a difference in antibody recognition. While sometimes small changes in HA are sufficient for a large antigenic distance. That is, with few mutations, some Hemagglutinins may be much less recognized by the antibodies.
Explanation:
As the virus replicates in the body of infected people, the immune system captures several pieces of viral protein, the antigenic antibodies, and produces antibodies against them. There are other types of immune responses, too, but they do not cause long-term immunity, so that is beside the point. The two main viral targets of the antibodies are Hemagglutinin and Neuraminidase, since they are the most exposed proteins of the virus. When antibodies associate with them, in addition to signaling macrophages and other types of defense cells that that foreign body (the virus) has to be attacked, they can still prevent the virus from working. An antibody that attacks the Hemagglutinin receptor recognition region prevents it from associating with cells. They are the so-called neutralizing antibodies.
Answer 3
Because you search and you leaning the answer as well