...Of the 9 Systems in the Human Body according to a Western Worldview, 5 are obvious and 4 unseen. CUMID (obvious) and LENI (unseen).
- Of the obvious: cardiovascular, urinary, musculoskeletal, integumentary, digestive.
- Of the unseen: lymphatic, endocrine, nervous and immune
Of chemicals in the body we have potential and action, -or- pharmacokinetics v. pharmacodynamics. Pharmacokinetics refers to what our body does to a drug, and pharmacodynamics, to what the drug does to the body.
When 2 or more observable characteristics or traits (phenotypes) manifest from a single species we have what is called polymorphism.