Identifying Yuck - A whole world in a drop of water

I think it is a Segmented worm because it is small, I know it's a worm, and of course we might not be  able to see it but they do have suckers so they can eat.

I'm not sure about this one but I think it's a Green algae because it looked like a cob web, it was green, it was floating around more then attached to something, and it didn't have flagella all around or even one around it.