<span>The answer to this question would be: the HPV vaccine does not replicate in the host
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Administering a vaccine will induce the body immune cells to recognize it and produce a specific antibody for that antigen. The vaccine can be beneficial if the titer of the antibody is above a certain level. If the level of antibody is too low, the protection will be low too. Giving vaccine multiple time will increase the titer and increase the protection. HPV vaccine is safe because it won't replicate in the host so it can be administered multiple times.
Answer:
c
Explanation:
it involves only the movment of water molecules
I will say Large piscivorous fish since i figure that it eats it.
Answer:
Monotremes, marsupials, and placentals are the three animals that could match this phylogenetic tree.
Explanation:
Monotremes, marsupials, and placentals belong from a common ancestor. Those organisms which have one common ancestor are also called monophyletic. These animals have some changes which occurs with the passage of time but most of characters are similar to each other. In placentals animals placenta is present while in Monotremes and marsupials this placenta is absent.