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
Persons with intellectual and/or developmental disabilities may need the support of advocates to become effective self-advocates. Position. Advocacy is vital in improving and sustaining quality of life for persons with intellectual and/or developmental disabilities. To be effective, advocacy must take place at both the individual and system levels. Advocacy can be aimed at public officials, support systems and the general public.