Our capacity to react to our surroundings would scarcely be possible without the multitude of internal chemical reactions that occur continuously within our bodies. More than just enabling life, the biochemical makeup of all living organisms confers on them the ability to have a tangible biological impact on each other and their environs. This fascinating series details the microscopic processes that power our physical and emotional responses and facilitate communication at the cellular level. It also examines in depth fungi, protists, algae, bacteria, and virusesthose organisms whose complex relationship with the natural world reveals the many layers of biochemistry.