Carbon… SO SIMPLE: Crash Course Biology #1

29 Comments

1. We breath in oxygen O2, and exhale carbondoxide CO2. Does the oxygen pull out the carbon from our cells?

2. Watching this video exactly 10 years later and it's incredible!! Thank you Crash Course

3. Great explanations but far too fast.

4. Hi I'm from the Philippines, i want to thank this channel and specially Prof. Hank for sharing and teaching his knowledge about Biological Science in a enjoying way. Truly grateful that God use Prof. Hank and this channel for me to learn, now I'm a passer in Board exam major in Biological Science. More power to y'all guys and God bless ❤️❤️❤️

5. Question: What and how many books did you write?/Awesome 👍😎 Your a great professor

6. I wanna see u n person Mr. Hank Green, Sir.
   huhu my idol <3

7. Hank Green is one of the funniest people I have found on crash course, but at the same time, he is very good at explaining. Thank you so much!

8. I'm watching the video after 10 years. It's really amazing that since I was 5 years old there are people who care and share this great information.💜

9. It's so helpful! I'm an interpreter and no books teach such words and word forms.
   I know all of this in my native language, but in English….

10. You are a great teacher Hank Green!

11. From 2022, idk how hank looked much older back then than now.

12. This is great

13. here in July 2022

14. I wish you were my dad

15. watching this in 2022 when I only recently heard of you via your vids on tiktok lol

16. You are great!

17. In 2022

18. This is where everything changed. I learned science.

19. is he the guy from philosophy course?

20. Young Hank is wild yo

21. Hank looks young

22. Hilarious!

23. I watched most of your Anatomy and Physiology videos

24. does anyone only know the intro song from tiktok

25. WoAH. He had a beard. Also I knew they both looked alike, but I never thought they were brother's until people one day I decided to look up the first video on Crash Course

26. Aw this is when annotations we're still a thing, god I miss them

27. i've watched this video way too many times for different reasons.

28. Amazing 🙂

29. You're an absolutely hilarious genius. I wonder if Einstein was this funny and good at teaching

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