Bacteria and archaea


They’re everywhere. They number in the millions of trillions of trillions. They live on every surface, in every environment, and even in your gut. That’s right…I’m talking about prokaryotes! Learn more about bacteria and archaea.

Part of Biology

More Ways to Learn Microbiology

Gut Check: Exploring Your Microbiome

College | Online class

Imagine if there were an organ in your body that weighed as much as your brain, that affected your health, your weight, and even your behavior. Wouldn’t you want to know more about it? There is...


Microbiology Online Course

College | Online class

Duration: 20 hours, 1 minute Number of Lessons: 44 This course is essential for college students looking to fully understand Microbiology that will become the foundation for more advanced classes....

$35 monthly

BIO307: Microbiology

College | Online class

Microbes are microscopic; thus, we cannot see them by the naked eye. Antoni van Leeuwenhoek crafted the first microscope lenses that magnified over 200 times, and he turned his lenses towards...


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