Yes, because it can be spelled like this bio.
If it is a common abbreviation, go for it! However, it is more professional not to so I would stay away from abbreviations.
We usually do not use abbreviation to describe meeting, if you have to use the abbreviation, I suggest you "mtg".
Yes you should always use a period.
Yes. You can express personal feelings if it is your biography, but if it is on someone else no. A summary could be the proper place to analyze the actions of the person whose biography you have done, but the biography should be an objective study.
Yes it's the abbreviation of versus so it should have a fullstop after it.
Abbreviations should be spelled out when they are first introduced in a document or piece of writing. After that initial introduction, you can then use the abbreviation throughout the rest of the text.
The BBC use the abbreviation "ALO"
You could probably abbreviate the word health as HLTH if it were necessary. However, that is not a standard abbreviation that you should use in a paper for school or in any other formal writing.
Go online, get info about the teacher, and write a biography.
"sent." is an abbreviation that you could use.
No, the abbreviation for Madam is Mdm.
It would be correct to do so. It would be better to try and not use the abbreviation at all and to define whatever else is similar