BIOLOGY TODAY AND TOMORROW WITH PHYSIOLOGY, 4E, International Edition is packed with applications that are relevant to your daily life. The clear, straightforward writing style, in-text learning support, and trendsetting art help you understand key biological concepts. The accompanying Aplia for Biology further improves comprehension with conceptually based exercises and immediate feedback. Overall, this accessible and engaging introduction to biology provides an understanding of biology and the process of science while developing the critical-thinking skills.