Answer:
I believe it is "C".
Explanation:
I am not sure if this is right or not at all, but I have a feeling that it is "C" because both a Willow Tree and a Disease are Nouns.
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:
I believe the theme of the story revolves around truth and how it can be defined or changed by those who have more power.
Explanation:
Ambrose Bierce's "The Difficulty of Crossing a Field" is a one-page short story. A man named Williamson is crossing a field when he suddenly disappears. However, only two people are listened to and believed when it comes to this strange fact - Mr. Wren and his son. But most importantly, Mr. Wren and his son are white men who own some land. Williamson's own wife and the slaves working on the field are not listened to or believed at all. The wife is even said to have lost her mind. The inferiority of Africans and women is clearly shown - and let's make it clear that Bierce is criticizing such an action. Everyone saw his disappearance, everyone came up with different explanations to it, but the woman and the slaves were not considered worthy of being heard and trusted. The "truth" in the end is something chosen, established by a few.
The probability is a 10/15 chance
