Pollen (microsporocyte, pollen mother cell or meiocyte), after meiotic division. After the formation of the four microspores, which are contained by callose walls, the development of the pollen grain walls begins. The callose wall is broken down by an enzyme called callase and the freed pollen grains grow in size and develop their characteristic shape and form a resistant outer wall called the exine and an inner wall called the intine. The exine is what is preserved in the fossil record. Two basic types of microsporogenesis are recognised, simultaneous and successive. In simultaneous microsporogenesis meiotic steps I and II are completed
The Decay of Fiction of nude men and women, stop-motion animated mannequin torsos, flickering film projections and dim light bulbs to create what devolves in a sense of nightmares, giving a result that feels more like an art installation than the expected film. When displayed in museum exhibitions, the interactive DVD installation is called "Tracing the Decay of Fiction". The presentation is shown in a continuous loop and allows museum patrons to explore the narrative and create their own stories. "The Decay of Fiction" had its festival premiere screening on October 12, 2002, at the New York Film Festival. Subsequent festival screenings include: The