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
Lobbying (often by lobby groups) is a form of advocacy where a direct approach is made to legislators on an issue which plays a significant role in modern politics. Research has started to address how advocacy groups in the U.S. and Canada are using social media to facilitate civic engagement and collective action.ifferent contexts in which advocacy is used: 1  In a legal/law context: An 'advocate' is the title of a specific person who is authorized/appointed (in some way) to speak on behalf of a person in a legal process. 2  See advocate.