The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its

evolutionary history. For example, land mammals have different anatomical and physiological traits compared to marine animals. Land mammals have lungs to breathe oxygen from the air, while marine animals like fish have gills to extract oxygen from water. Similarly, the size of the organism also affects its anatomy and physiology. Larger animals like elephants have a different body structure and metabolism compared to smaller animals like mice. The environment in which an organism lives also plays a crucial role in shaping its anatomy and physiology. For instance, desert animals have evolved to conserve water and withstand high temperatures, while polar animals have developed adaptations to survive in extremely cold conditions. Lastly, the evolutionary history of an organism influences its current anatomy and physiology. Over generations, organisms evolve traits that help them survive and reproduce in their specific environments. These traits are then passed on to the next generations, shaping the anatomy and physiology of the species over time.