Final answer:
Architecture's functional necessities include sufficient space, materials that withstand stresses, and a form that reveals the building's purpose.
Step-by-step explanation:
In architecture, the functional necessities require sufficient and easily accessible space, materials that withstand gravitational stresses, and the form of the building to be revelatory of its function or purpose. Architecture's functional necessities include sufficient space, materials that withstand stresses, and a form that reveals the building's purpose.
For example, warehouses are designed as large squares or rectangles to enclose a space for efficient storage, while homes have specialized areas for cooking, resting, cleaning, and entertaining. The principle of 'form follows function' also applies to other industries, such as cell biology, where the form of cells reflects their specific functions.