Both organisms are composed of cells and each surrounded by a cell membrane. The largest difference between prokaryotic orgaisms and eukaryotic orgasims is that eukaryotic organisms have a nucleus. They also have organelles.!
The function of prokaryotic:</span><span> Cells with genetic material and cell chemicals are all closed in by a cell wall, and have no organelles or nucleus, are called prokaryotes. Organisms in this group are mainly bacteria.
The function of Eukaryotic: </span><span>Eukaryotic cells have a nucleus,so the cell's DNA is surrounded by a membrane. So, the nucleus holds the cell's DNA and directs the synthesis of proteins and ribosomes, the cellular organelles responsible for protein synthesis.</span>
Whenever there are extra synapses present in the brain that are no longer in use then the brain tends to eliminate these connections and this is termed as synaptic pruning .
During this process there is decay of the dendrites as well as the axons .
The process typically occurs at the peak in the period between early childhood and the onset of puberty however it begins at the time of birth and continues upto the early 20s.
Further pruning is affected by the learning mechanism and the influence of the environment.
One thing to be noted is that in pruning the death of the neurons does not occur however there is simple retraction of the synaptic connections.