the science questions.

I am sitting at my computer wearing a tuxedo as I type this pre-wedding rant. I am not getting married, but my long time friend Jon M. is marrying a person. Jon M. is a twin, and the person he is marrying is a triplet. Thats some weird wacky stuff. By the way, I refer to my friend simply as Jon M. to protect his identity and to protect him from being associated with this unsavory website. Unsavory is a strange word that always makes me think of one thing: Slimer from the ghostbusters movies. Now then, I am curious as to how often a twin marries a triplet. I am also trying to figure out the biological difference between the two types of twins. All I remember is the following: You can have the kind of twins wear the egg splits, and then you can have the other kind of twins...but what is that other kind? It can't be that the egg doesn't split, b/c wouldn't that be only one child and not two? Furthermore, what happens with triplets and quadruplets and fivelits? Does the egg simply split into 3,4,or 5? That can't be right, b/c I think that would mean that all the kids would be identical and thats kinda freaky. Thats like cloning. If the triplets at this wedding are all identical, I am gonna be nervous and feel like I am partaking in some type of science experiment. I'm sure they are not identical, so this really isn't a concern for me. But if there are siamese twins at the wedding, I'm outta there.
I guess I am a bit paranoid about going to law school in Penn, b/c I see all these other people in med school and science grad school for things I cannot even begin to understand, and they all seem much smarter than I. Like for example, they can probably answer my question about the different types of twins. There are a few other biological/science things that I am fascinated with and maybe some of you science geniuses can answer them for me:
1) whats the difference between meiosis and mitosis? Are they really the same thing, but different elementary school teachers pronounce them differently? Which one do humans do?
2) Who would win in a fight between the "ameba" and the "paramesium"? I mean, the "ameba" has those arm like structures and thats good for grappling, but the paramesium has those hair-like cilia, which probably means they are gross to fight with...so the ameba is probably uncomfortable with the hairy paramesium. One thing is for SURE- I would pay to watch this fight.
3) what would happen if I didnt have an epiglottis? I love the epiglottis b/c its just a simple flap that opens up when I want to eat my food. But lets say there is no epiglottis at all??? Does it matter, or now its just always open? Basically, what I am asking is - can i cut out my own epiglottis?

As a final thought, I am probably the first person ever to have lit hanukah candles in a tuxedo. So mazel tov to me on that accomplishment.