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
âEducational Advocacyâ is a vague term. In an Internet search of the term, most of the results listed are âSpecial Education Advocates.â Because Special Education Advocacy is neither a federal nor state regulated profession, sometimes labels are used interchangeably.