Dementia forms with different origins progress differently (or sometimes not at all).
(That's true even for dance forms with different kinds of origins: ballet lovers like nothing better than to discuss the differences between, say, French and Danish ways of holding the arms or jumping).
Video art and music videos are different art forms with different histories.
That will come in different forms, with different age groups of people and it will change as the technology evolves.
Glycerides, further, have several polymorphic forms with different melting or transition points.
This disorder in chain conformation and packing leads to different crystalline forms with different stabilities.
Members of the genus Trypanosoma, which cause sleeping sickness and other diseases, have flagellated forms with different morphologies.
Consequently, the idea of a single magic bullet to treat all these forms with different causes, pathologies and responses is extremely far-fetched and should be treated with scepticism.
A vertical, upstairs-downstairs picture is being replaced by a horizontal model in which culturally related forms with different, sometimes conflicting social histories run on parallel tracks from which they often veer and intersect.
At the same time, in different forms, with different priorities, feminism, often assumed to be a Western phenomenon, was developing in truly radical ways in Africa, Asia, South America.
Ballet and architecture are different art forms with different historical traditions, but artists in both fields have faced the same issue: how to look at the relationship between past and present.
