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Spermatozoa
Compozed of a head, midpiece and a tail, mature at a rate of about 300 million per day and, once ejaculated, have a life expectancy of about 48 hours within the female reproductive tract. The head contains nuclear material, the midpiece carries on metabolism and the tail propels the sperm along its way.
Compozed of a head, midpiece and a tail, mature at a rate of about 300 million per day and, once ejaculated, have a life expectancy of about 48 hours within the female reproductive tract. The head contains nuclear material, the midpiece carries on metabolism and the tail propels the sperm along its way.