Crash Course Biology

Crash Course Biology

The Excretory System: From Your Heart to the Toilet (1x29)


Air date: Aug 13, 2012

Hank takes us on the fascinating journey through our excretory system to learn how our kidneys make pee.

  • Premiered: Jan 2012
  • Episodes: 90
  • Followers: 6
  • Ended
  • YouTube
  • Monday at 17