Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the concentration of water molecules inside and outside the cell
concentration of enzymes on either side of the cell membrane
rate of molecular motion on either side of the cell membrane
rate of movement of insoluble molecules inside the cell

the answer is yes, they are born/created, then they grow to their limit then produce offspring, then die.

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.