Here is the answer that would best complete the given statement above. <span>Near shore, larger sand and gravel particles are moved along the ocean bottom by TURBULENCE. Turbulence is the unsteady movement of water or air. Hope this answers your question. </span>
0.25mm is the absolute size
When they reach size limitations....they divide by binary fission or any other process of reproduction !
second may be they stop division and stay at their state as happens in ovum of the female as they stops in diakinesis !!!