Online Biology Book high-school ebook

Dr. Ferebee at Estrella Mountain Community College has provided us a great 'Online Biology Book' ebook for those that find 'Kimball's Biology Pages' ebook a little too complicated. He's also released this awesome tool to the public with an open Creative Commons Attribution (CC BY) license. For us non-lawyers, that means you are free to share, copy, distribute, transmit, adapt, and make commercial use of the work. Sweet!!
'Online Biology Book' has really easy to read content with lots of images to complement the text. After you're done with this ebook, move up to 'Kimball's Biology Pages' ebook.