1. When I conduct research on a subject I'm unfamiliar with, my first stop is Wikipedia.com.—more often than not, Wikipedia provides enough information to kick-start my research. It's an invaluable resource, providing concrete information on the subject at hand as well as links to sites which branch off into various related topics. I use the information on the Wikipedia page as a home base for my research and the provided links to direct me to sites which can help me narrow my focus.
Also, what type of biology are you referring to? There are many branches. Check out this link: https://www.quora.com/What-are-the-different-types-of-biology
Here's the Wikipedia link to the basics of biology: