What diaphragm function when singing? is it diaphragm to let out all oxygen from lungs?

Now for all my fellow anime lovers i have 4 questions: 1. which ship would have been the best ending for inuyasha a) inuyasha x kagome b) sesshomaru x kogome c) koga x kagome d) none 2. what is your ideal ending for fairy tail 3. which show wouldn't you mind watching or rewatching a) ghost hunt b) psycho pass c) inuyahsa d) the wallflower e) pick your own 4. what is the anime show you that you would love to live in for a year?

What does it mean to have a bias (for example your bias of bts)?

Performer emphasizes a tone by playing it more loudly than the tones around it is called?