This zone is also used to designate base floodplains of lesser hazards, such as areas protected by levees. from 100-year flood, or shallow flooding areas with average depths of less than one foot or drainage areas less than 1. square mile.
Amitosis is also referred to as Binary fission or direct division. This type of division is employed by lower prokaryotes, not only for multiplication of cells but also for reproduction. In this context, a bacterial cell has been taken as an example of describe the process.
All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Cell division is tightly regulated because the occasional failure of regulation can have life-threatening consequences. Single-celled organisms use cell division as their method of reproduction. Cell Division and Growth: A sea urchin begins life as a single cell that (a) divides to form two cells, visible by scanning electron microscopy.