To truly understand what's happening at a specific level of science, you need to have a firm understanding of the level directly below it. In biology, the level directly below it is the teeny tiny world of chemistry. The interaction of three subatomic particles to form atoms with different properties, these different atoms interacting to form molecules, and these molecules interacting to form even larger (you might call them macro) molecules governs all of life and is responsible for the composition of every living thing on the planet. Then there's this stuff called water. Don't even get me started on how cool water is. From it's ability to be the perfect solvent, it's incredibly unique characteristic of being less dense as a solid than as a liquid, to the extreme amount of energy it takes to heat the stuff up compared to other molecules. Oh yea, let's not forget enzymes who are the tiny chemists in our bodies that perform and manipulate all of these amazing molecules. Buckle up. It's time to get abstract.
Content & Skills Guide
Chapter 2: The Chemical Context of Life
Chapter 3: Water and the Fitness of the Environment
Chapter 4: Carbon and the Molecular Diversity of Life
Chapter 5: The Structure and Function of Large Biological Molecules