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Piyush365
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Asked: 2025-09-30T04:13:00+00:00 In:

When a girl is born, the ovaries already contain thousands of immature eggs. On reaching puberty, some of these start maturing. One matured egg is released every month by one of the ovaries. The two oviducts unite into an elastic bag-like structure known as uterus. (i) Write the site of fertilization in human female. (ii) How does the uterus prepare itself to receive and nurture the growing embryo? Explain.

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(i) Fertilization in human females takes place in the **oviduct (fallopian tube). (ii) The uterus prepares for embryo implantation by thickening its inner lining, the endometrium, which becomes soft, spongy, and richly supplied with blood vessels.

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    1. (i) Fertilization in human females takes place in the fallopian tube (oviduct).

      (ii) The inner lining of the uterus, called the endometrium, becomes thick, soft, and richly supplied with blood vessels each month. This provides a warm, nutrient-rich environment to receive the fertilized egg and support the growing embryo.

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