Jovaro, no organism can 'decide' to reproduce itself unless it has the capacity to do so.
Replication even in the simplest forms of life known is extraordinarily complex.
Amazing how those who believe in evolution think that somehow it just 'happened.'
Most procaryotes reproduce by a relatively simple asexual process called binary fission: each cell increases in size and divides into two cells. During this process there is an orderly increase in cellular structures and components, replication and segregation of the bacterial DNA, and formation of a septum or cross wall which divides the cell into two. The process may be coordinated by the procaryotic membrane usually by means of mesosomes. The DNA molecule is believed to be attached to a point on the membrane where it is replicated. The two DNA molecules remain attached at points side-by-side on the membrane while new membrane material is synthesized between the two points. This draws the DNA molecules in opposite directions while new cell wall and membrane are laid down as a septum between the two chromosomal compartments. When septum formation is complete the cell splits into two progeny cells. The time interval required for a bacterial cell to divide or for a population of cells to double is called the generation time. Generation times for bacterial species growing in nature may be as short as 15 minutes or as long as several days.
from http://www.bact.wisc.edu/Bact303/TheProcaryotes
The first bold -- all are mine -- is a quick summary of what happens. I think bolded two things that we don't even know how they happen. The last bold is one about which I would ask this: what governs the placement, the timing, and the construction of this membrane? WE DON"T KNOW.
And this is 'simple' in comparison to eukaryotic and/or sexual reproduction!
Darwin, in the ignorance of the time, considered the cell a sort of simple blob. So the idea of evolution was not really that big a deal in terms of how it might have happened. It just did. Somehow.
But the more we have found out about the cell, the more the evidence declares evolution impossible. Replication is just one area.. There are literally dozens more.