- single-celled fungi
- 50% protein
- asexual; they split into two to reproduce
- everywhere
They can
- breath oxygen (respire)
- or, in the absence of oxygen, they can ferment sugars and carbohydrates into ethanol and carbon dioxide.
Most amazingly, yeast are good at surviving in space. Why is that?
To get a better idea of what yeast are all about, I filmed some dry active yeast in warm water over the span of about 5 minutes. Here's the video at 500% speed:
While we're at it, mushrooms like to grow in cool ways too. This video, of pearl oyster mushrooms, occurs over the course of a few days in April 2011:
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