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 definition of advocacy is the act of speaking on the behalf of or in support of another person, place, or thing. An example of an advocacy is a non-profit organization that works to help women of domestic abuse who feel too afraid to speak for themselves. advocacy. advocacy.