What determines the structural organisation of a mammal?

📌 CONCEPT: The structural organisation of a mammal is determined by its ability to adapt to its environment, which influences the development of its body systems. This adaptation is driven by factors such as thermoregulation, locomotion, and the need to survive in different ecological niches.

📐 RULE / FORMULA: The principle of 'form following function' applies, where the structure of an organ or system is adapted to perform a specific function. This principle is influenced by the mammal's lifestyle, habitat, and evolutionary history.

💡 WORKED EXAMPLE: For example, a desert-dwelling camel has a larger surface area of its tongue to collect more moisture from food, whereas a bat has a highly developed sense of echolocation to navigate in the dark. Both adaptations are shaped by their respective environments and lifestyles. The camel's tongue adaptation helps it to conserve water, while the bat's echolocation system allows it to hunt and navigate effectively.

⚠️ COMMON MISTAKE: Students often assume that structural organisation is solely determined by genetics, ignoring the significant role of environmental factors in shaping the development of an animal's body systems.