The dorsoventral polarity of Drosophila egg is established by means of signaling between the germ line-derived oocyte and the surrounding somatic follicle cells.
Well, the pulp falls from a box onto the first part of the paper machine, which is basically a wire bed with large holes in it, where most of the water is extracted.
Two dancers form the lion, one holds the lion's head revolves the front part of the lion's body while the second dancer forms the body and the tail of the lion.