How do interactions at the atomic level help us to understand the observable properties of organisms and non living matter?

Interactions at the atomic level determine the arrangement of atoms and molecules, which influences the chemical and physical properties of matter. In organisms, these interactions are responsible for the structures and functions of biological molecules like proteins and DNA. In non-living matter, atomic interactions determine characteristics such as melting point, conductivity, and strength. By understanding these atomic interactions, we can explain the observable properties of both living organisms and non-living matter.