Here’s Thursday’s clues…

1: I was discovered by a pioneering scientist and have been used since ancient times.

I can also be found on your skin and even in your intestinal tract, and there’s 15 hundred types of me.

2: I am a living single cell organism and very common in nature. I have a cellular organisations similar to many higher organisms like humans.

3: I enable natural fermentation and also I can reproduce asexually through budding or direct division and I can also help things to go up.

So, WHAT AM I ? find out tomorrow and NO Googling…