Last Minute Lecture

Circulation and Gas Exchange in Animals Explained — Circulatory Systems, Respiration, and Oxygen Transport | Chapter 42 of Campbell Biology Efficient circulation and gas exchange are vital for animal survival, allowing for the delivery of oxygen and nutrients to cells and the removal of metabolic wastes. Chapter 42 of Biology explores the remarkable diversity of circulatory and respiratory systems in animals, from simple diffusion in flatworms to the complex, double circulatory system of mammals and birds. This chapter provides an in-depth look at the heart, blood vessels, respiratory pigments, and the physiological adaptations that enable animals to meet the demands of activity, growth, and survival in varied environments. Watch the podcast summary below for a visual overview, then read on for expanded explanations, glossary terms, and real-world adaptations in animal physiology. Introduction: The Purpose of Circulation and Gas Exchange All animals must move oxygen and...