The chemical level is responsible for organizing the many different chemical structures, in doing this it will allows for atoms, molecules and macromolecules to form a gel-like material called cytoplasm (Thibodeau, 7). Cytoplasm can also be referred to as “the essential material for human life.” That being said, our world is made up of both non-living material and living material and it is the chemical structure level that separates the two. Everything in our world is made up of atoms, which are described as little spheres of matter. Accordingly atoms combine with other atoms to form what is known as molecules. In doing that, molecules will do the same and combine (join) themselves with other atoms/molecules to form what is known as macromolecules. With even more complex chemical structures in cells, a number of different structures emerged known as organelles. These organelles are specific to its organization, for it will determine its specific function. Organelles are incapable of survival outside the cell, seemingly the same goes for the cell, in that it will die off without the presence of organelles. The chemical and organelle levels of organization are the basis for the next level of organization, the cellular level. In the centre or core of a cell there is the nucleus, which is covered/surrounded by a material called cytoplasm, this material includes a number of different organelles, which are unique in their function. The formation and the organization of a number of cells that share not only a specific but similar function, are known as tissue. Tissue cells surround themselves with non living matrix and up until now there are four main tissue types, the epithelial, connective, muscle, and nervous tissue. Accordingly, these tissue types can be subdivided into different subtypes. (Thibodeau, 8). An organ is defined as a structure made up of several different kinds of tissues arranged so that, together, they can perform a special function (Thibodeau, 8). Organs are formed when tissues combine with other tissues, and in doing so they form a complete and complex functional unit with a specific role in the body. At the system level, a number of different organs combine so that together they can perform a function that is complimentary to one another. Last but not least, the organism level. This level of organization exists solely because all the other levels exist as well. That being said, the organism level is the human organism that would not exist without all other components of the human body working together as one.