I think that biological organisms and buildings have a lot in common. Here are some analogies I can think of:
As our skeleton consists of different bones that hold our body together and provide support and shape, a building consists of multiple beams, columns, slabs, etc. that make a skeleton of the structure.
As the skin is the first physical barrier that the human body has against the external environment, the facade of a building provides exterior protection for the building
As the cardiovascular system transports nutrients, oxygen, and waste throughout the body, the HVAC system maintains good indoor air quality by regulating and circulating airflow, temperature, and humidity.
As the respiratory system moves fresh air into the body while removing waste gases, the ventilation system circulates fresh air and removes pollutants.
As the digestive system breaks down and digests food into simple nutrients such as carbohydrates, fats, and proteins, the plumbing system distributes water and removes waste from a building.
The nervous system transmits signals between the brain and the rest of the body, including internal organs, while electrical wiring connects different systems and devices of the building.