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
An advocacy service is provided by an advocate who is independent of social services and the NHS, and who isn't part of your family or one of your friends.An advocate's role includes arguing your case when you need them to, and making sure the correct procedures are followed by your health and social care services.n advocacy service is provided by an advocate who is independent of social services and the NHS, and who isn't part of your family or one of your friends.