"Animal Physiology: From Genes to Organisms" (primarily known as the textbook by Sherwood, Klandorf, and Yancey) is built around the .
How individual tissues coordinate to perform complex tasks (like respiration or digestion). Animal Physiology: From Genes to Organisms
How those proteins govern cell signaling and metabolism. Animal Physiology: From Genes to Organisms
How specific gene expressions trigger the production of proteins and enzymes. Animal Physiology: From Genes to Organisms