Cell Biology      

Cells reproduce by division, it divides the cells in two and that repeats. It Uses photosynthesis to make the food, it divides to consume more food, cell makes when there is rather large consummation of food, the most air of surface it has, it will have more  food, smaller forms, the more air surface for the bigger thing. 

air=oxygen molecules.

some cells almost the same forms, categories of cell is animals, plants, bacterial. It Varies between some are propertiesof food. The plants cells  make a mechanism for manufacturing their food.Cells can all form multiple cellular organisms (plants, animals, bacteries) because they all reproduce.

 The cell Cycle

They start by developing  a stem which is differentiated from the cells so it divides the mitosis. It resemble to rest, in order of an activity that shows that the cell is about to spit, this is called cell cycle. with the interphase which resembles to an eye which is the stage of rest which causes the division of the cell.  Real period activities which varies the interphase essentially and after is ready for the next mitosis activities.