I work in a flower shop, sometimes we call flowers blooms or blossoms.
I've heard of them being called buds also. I think that would be fun and the smell would be nice too.
It is! Flowers facilitate outcrossing so you can crossbreed many kinds of flowers.
We wouldn't be alive without them I would think, since bees use flowers to pollinate.  Amazing how thinks are interconnected.
It really is, flowers are so interesting some actually have evolved to attract animals to help spreed their pollen.