Help Full videos on Lecture of biology

The main purpose to gather as much of the videos online and put them together to be watched by people to understand them. If one is help full it stays on the blog site and if not it gets deleted so comment them on the blog. Thank you,
Edgar Barron





Lesson number 1




lesson number 2





lesson number 3



lesson number 4



lesson number 5




lesson number 6



lesson number 7