Answer:
im going with the word "current"
Explanation:
Answer:
To learn more.
Explanation:
Scientists want to know the advantages and downsides of it, like any other invention. To see if it can replace something else and be safer.
Answer:
herd immunity is real. It is where you put a bunch of sick people together so that way they get antibodies sooner It did work in the old days. With the new virus, you might not want to try it.
Answer:
A. neck
cervical spine is the spine in the neck