I was told all humans start as female and then the ovaries descend and become testis. Why are females limited in this capacity?
In: Biology
Eggs and sperm are very different sorts of cells. Eggs are among the largest cells in the whole human species. Sperm, on the other hand, are small, disposable, short-lived cells. They are like one-time-use battery gizmos. Pull out the insulating tab and light blinks until the battery dies.
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