BI-990
Fertilisation and early development
Biology · Secondary 3 · Easy · Fertilisation and early development
After fertilisation in the oviduct, the human zygote divides repeatedly to form a ball of cells. For a successful pregnancy, what must this ball of cells do next?
- Implant into the lining of the uterus wall
- Remain floating in the uterus cavity
- Attach to the ovary where it was released
- Stay in the oviduct and develop there
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