Watch Crash Course Biology Season 2 Episode 45 Online
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- COUNTRIES: United States of America
- Subtitles: English
The world is full of microbes and viruses that can get us sick, but we’ve got an Avengers-style defense system ready to take them on. In this episode of Crash Course Biology, we’ll learn about an animal’s immune system, from their skin to inflammatory responses, to the adaptive immune system and all the special cells and antibodies that come with it.
