Examlex
The cell nucleus contains ________.
Semen
A fluid containing spermatozoa and secretions from male reproductive organs, playing a key role in human reproduction.
Uterus
A female reproductive organ in which a fertilized egg implants and develops into a fetus.
Acrosome
A region at the head of a sperm cell that contains enzymes important for fertilization by breaking down the outer membrane of an egg.
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