science @ gcc

Human Biology

Biology, the study of life, extends from the global scale of the entire living planet to the microscopic scale of cells and molecules.  One can divide the range of biology into hierarchical levels of biological organization.  At the largest level are all the environments on earth that support life (biospheres).  A closer look at one of these environments brings one to the level of all the organisms living in a particular area as well as the nonliving physical components with which organisms interact (ecosystem).  All the organisms inhabiting an ecosystem form a community.  Below the community level is an interacting group of individuals of one species termed a population.  Below this level is each individual living thing (an organism).  Each organism is composed of organ systems (digestive, circulatory, etc.).  Then, each organ system can be seen to be composed of various organs (stomach, intestine, etc.).  Each organ is composed of tissues (groups of various similar cells that work together).  Each cell (a unit of living matter) is composed of structures that perform a specific function in a cell (organelles).
Finally, each organelle is composed of molecules that are made of atoms held together by chemical bonds.

To view current offerings in Biology, please search our current course catalog & schedule.

More coming soon!