The H1N1 and H3N2 viruses both cause the flu, an infectious disease characterized by respiratory symptoms, fever, and body aches. Each year, a flu vaccine that contains H1N1 and H3N2 antigens is developed. An individual who receives the vaccine makes antibodies directed against these antigens.

The flu vaccine is typically about 60% effective against H1N1 flu viruses, but only 30% effective against H3N2 viruses. What is the most likely reason why the flu vaccine is less effective against the H3N2 flu viruses than the H1N1 flu viruses?

A. Infection with the H1N1 virus does not involve an immune system response.
B. Infection with the H3N2 virus does not involve an immune system response.
C. The H3N2 flu viruses mutate more rapidly than the H1N1 flu viruses.
D. The H1N1 flu viruses mutate more rapidly than the H3N2 flu viruses.

The energy available as a result of the motion of a body is called energy. -potential -gravitational -kinetic -chemical

Clues to ecological principles are given in numerous passages of the bible. a bible study of ecology actually opens the doors to better understanding of god's love and concern for the earth. use a concordance to locate bible passages associated with words concerning our stewardship of the earth. you may use a dictionary to find synonyms for these words: dominion replenish subdue judgment stewardship find each of the passages using these words related to principles of ecology. list all passages by quote, book, chapter, and verse under each word. use your own interpretation to rewrite what you think each verse is saying. after your discussion of each of these words, ask one other person to explain his understanding of the word and a related verse without any hints. summarize what he tells you. a concluding paragraph for each of the words should be written noting similarities and differences between your interpretation and that of each person consulted.

What is the problem in this article? what solution does the article propose?