Final answer:
The epididymis in the fetal pig functions as a site for sperm maturation and provides sperm with the ability to move independently.
Step-by-step explanation:
The epididymis in the fetal pig serves as a site for the maturation of sperm. The tightly coiled tube attached to the testis allows immotile sperm to mature and acquire the ability to move independently. Once inside the female reproductive tract, the mature sperm can move towards the unfertilized egg.
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