What’s growing in my pot?

What’s growing in my pot?

So in addition to some seedlings I started the more traditional way, I also decided to plant some basil seeds in a pot which I had lying around. I watered it and put it on a windowsill without an open window. Things have started to sprout, but now I'm totally confused. Potted basil seedlings Potted basil seedlings Potted basil seedlings As you can see, there are various things starting to grow. I think basil has two cotyledons, which are still very small and at soil level (I think you can see a few of them), so what's with the tall single sprouts? When starting this pot, I dumped out everything that was in it before, then filled it with potting soil. I only planted basil seeds. So what else is growing? Could that have resulted from the potting soil?
Oh, the conundrum….

Oh, the conundrum….

First post evarr! Look at my room! :D

First post evarr! Look at my room! :D

Herb Italian Bread!

Herb Italian Bread!

mexi-sun bloomage

mexi-sun bloomage

Bug ID and Lily ID

Bug ID and Lily ID

myroom

myroom