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Bingel [31]
2 years ago
13

Why does a female need to maintain a thick uterus lining if fertilization does occur

Biology
1 answer:
bija089 [108]2 years ago
7 0
The uterus lining thickens because it provides protection for the baby to survive. When estrogen levels rise, the lining of the uterus thickens in preparation for fertilization.
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