the atom that is most closely associated to living things is carbon
Calcium and phosphorus (as phosphate)
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Answer:
The first and last box. If you don't agree with the first then definitely consider the last box.
1. It does this to protect host's cells and keep the virus in the same spot so white blood cells can kill them.
2. Aids are not caused by bacteria because what causes it is a sexual disease.
3. A vaccine is the disease but a weakened form so then the white blood cells can learn how to kill the disease but antibiotics can only slow down the disease so that the white blood cells can kill it.
I hope this helps you.
