Welcome to an exploration of the diversity of life. Join us on an awe inspiring journey of discovery about life's diversity across levels ranging from molecules to genes, cells to organs, and species to ecosystems. Along the way, we will explore many questions about the mechanisms underlying diversity as well as the consequences of diversity for our own species and for others. In this book, we highlight the divisions between plants and animals, prokaryotes and eukaryotes, protostomes and deuterostomes, but we also consider features found in all life forms.Unlike many other first-year biology texts, this book has chapters integrating basic concepts such as genetic recombination, the effects of light, nutrition, and domestication across the breadth of life from microbes to mistletoe to moose. From features like Concept Fix and Life on the Edge, as well as student written Study Break questions and the Aplia online homework and learning system; Biology: Exploring the Diversity of Life, second Canadian edition invites you to think and engage like a scientist.