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. of Advocacy is not new. Unfortunately advocacy is not simply defined, as it should be outworked in a framework of principles and beliefs, such as a belief in the right of individuals to self-determination (ie. be involved in decisions which affect them).nfortunately advocacy is not simply defined, as it should be outworked in a framework of principles and beliefs, such as a belief in the right of individuals to self-determination (ie. be involved in decisions which affect them).