The threat they pose is largely dependent on how the flow moves, which is in turn determined by the properties of the lava and the landscape. The two main types of lava, pahoehoe and `a`a, differ in various properties, such as crystal and gas bubble content, as well as having slight differences in temperature.These properties, along with the steepness of the underlying slope, determine the ease with which a lava flow moves.ahoehoe and `a`a lava flows. Lava flows are one of the most common hazards produced by active volcanoes. Here in Hawai`i, they may endanger property but seldom endanger people's lives.
This type of cell division results in the production of gametes (eggs or sperm). Meiosis is much more complex than mitosis. Whereas mitosis involves the duplication and subsequent division of chromosomes, meiosis involves two divisions of genetic material. As is the case in mitosis, in meiosis the cell duplicates its chromosome number prior to beginning cellular division. Then nuclear division, the sorting out of the genetic material, begins, and unfolds over the course of 2 cellular divisions that result in 4 gametes.
Both mitosis and meiosis are associated with cytokinesis. The end result of both are daughter cells produced from a parent cell. The fundamental sequence of events in mitosis is the same as in meiosis (in meiosis it happens twice).Both processes include the breakdown of the nuclear membrane, the separation of genetic material into two groups, followed by cell division and the reformation of the nuclear membrane in each cells.eiosis has two rounds of genetic separation and cellular division while mitosis only has one of each. In meiosis homologous chromosomes separate leading to daughter cells that are not genetically identical.