Organ systems. Organs are grouped into organ systems, in which they work together to carry out a particular function for the organism. For example, the heart and the blood vessels make up the cardiovascular system
I would say TV drama is a subgenre of the general "TV series" genre
anything shown by episodes on TV is a TV series, that includes drama, Comedy, Suspense, Horror and Food!
Hope this helped *smiles*
What are you talking about?
