Human femal sperm

If the ova is fertilized by sperm, it attaches to the endometrium and the fetus develops.

When it comes to age and effectiveness, the American Fertility Society recommends an age limit of 50 for semen donors

Rozati H, et al.

Similarly, yet still rare, Shettles also found that men whose semen contained significantly more oval-shaped gymnosperm had produced more female children. The female reproductive system primarily consists of internal organs.

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