Background. 1  Composed of cells, tissues, organs, organ systems. 2  All cells use ATP for reactions. 3  Four primary types of tissue: epithelial, connective, muscle, and nervous.  Organs have at least two or more types of 1  tissue. Organ systems:
Advocacy Law and Legal Definition Advocacy is the act of pleading for or arguing in favor of something or actively supporting a cause or proposal. It can also refer to the work or profession of an advocate. For lawyers advocacy
The Power of Advocacy (PDF): Public health is discussed in various capacities by local, state and federal decision-makers every day. Without the voice of those who possess both expertise and experience in public health, legislation, regulations and other policy decisions may not reflect what is best for the public's health. The time to be an advocate is now.