Organism

Organism explained in an easy to understand way:

Imagine trying to assemble a piece of flat-pack furniture without any instructions. Just like each piece of the furniture has a specific place and function, organisms are composed of various parts such as cells, tissues, and organs that work together in a coordinated manner to sustain life. Just as successfully assembling the furniture requires understanding how each piece fits and functions in the whole structure, understanding an organism involves recognizing how its components interact to maintain the organism's overall health and functionality.