AP Bio: The Immune System - Part 2

[@eunjunchoo673]

Your videos seriously help me soooo much. I could basically learn Bio without even going to class!

[@natchawatanaharuetai3679]

Omg I agree

[@tristanlast6158]

buys a green screen and leaves it as a green screen... genious

[@arianaisabela9652]

thank you for the video. you are an awesome teacher!!

[@chautran7602]

Hahhahaha child abuse in the womb I'm dead