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Watch Crash Course Biology Season 2 Episode 43 Online

  • 1.5/10
  • COUNTRIES: United States of America
  • Subtitles: English

Yep, this is the poop episode. Getting resources and getting rid of waste is so important, we have three whole systems dedicated to it! In this episode, we’ll learn how the respiratory system, digestive system, and urinary system work, and visit some other animals that process their resources in completely different (and sometimes totally wild) ways.