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
advocate verb [I/T]. âº to âspeak in âsupport of an âidea or âcourse of âaction: [T] Some âpeople advocate âteaching to the âtest. [I] The âorganization advocates for âhuman ârights. advocacy noun [U] us /ËaedÂ·ËÃ¦dÂ·vÉÂ·kÉ/ âº Si âthese groups have âbeen âincreasing âtheir education. advocacy