BI-2208
Fertilisation and early development
Biology · Secondary 4 · Medium · Fertilisation and early development
In humans, the following events occur after fertilisation of the egg cell.
1 The zygote divides by mitosis.
2 The embryo implants in the uterus lining.
3 A ball of cells is formed.
4 Fertilisation occurs in the oviduct.
In which order do these events occur?
1 The zygote divides by mitosis.
2 The embryo implants in the uterus lining.
3 A ball of cells is formed.
4 Fertilisation occurs in the oviduct.
In which order do these events occur?
- 4, 1, 3, 2
- 1, 4, 3, 2
- 4, 3, 1, 2
- 1, 3, 4, 2
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