Aimee!
All the green things belong to the Sedum family. It looks like they've been deprived of light, because they are all kinda stretched out and leggy-looking (this is what succulents do when they are reaching for those UV rays)...These sedums like lots of light, and they need to get out of that glass for drainage because they don't like their roots to stay damp and muddy. I would keep them all together instead of trying unravel the roots right now. Get a bigger pot that has a drainage hole with some succulent soil. The sedums with spread around like a ground cover. I would water only when the soil is dry. Again, lots of light and make sure they stay warm! Sunshine is best!
After they've grown a bit, you can simply snip pieces of the sedums off and restart them in a new pot. Keep them relatively dry (mist only) until they grow their own roots. I probably have ten square feet of ground cover that I propagated from just one sedum plant!
Here's one sedum you have in there:
And here's another (the bushy stuff behind the Gasteraloe, and BTW this sedum has been a ROCKSTAR in the garden...indestructible!):
