Production of the mature sperm cells have 4 step process beginning at puberty and throughout the male's lifetime. Spermiogenesis is the final process for production of sperm where the spermatids mature into motile spermatozoa. For humans, the spermatogenesis takes 74 days to 120 days and if the transport on the ductal system is included it would take 3 months.
The
final stage of spermatogenesis or production of sperm is called spermiogenesis.
It is the stage where spermatids differentiate into mature, motile spermatozoa.
This composed of four stages: first is the golgi phase where the spermatids
start to form a head and its DNA packaging are condensed. Second, the formation
of acrosomal cap in cap phase. Third phase is Acrosomal phase, one of the
centrioles of the spermatid elongates and become tail and the fourth phase is
maturation phase where the remaining cytoplasm and organelles are removed.
Divergent boundaries also form volcanic islands, which occur when the plates move apart to produce gaps that molten lava rises to fill. Current research indicates that complex convection within the Earth's mantle allows material to rise to the base of the lithosphere beneath each divergent plate boundary.
if you're looking for a minimum, people only need to eat every three day to survive, but the recommended amount of calories is 3000 calories a day for an average adult.
