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How do Organisms Reproduce?
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29/11/2020 12:13 pm
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How does fertilisation take place? Fertilisation occurs once a month. Comment.
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29/11/2020 12:14 pm
Fertilisation takes place in the following ways:
- The sperm enters through the vaginal passage during sexual intercourse and moves upward.
- Egg released from the ovary reaches the oviduct.
- Sperm encounters egg in the oviduct and fertilisation takes place. Fertilisation occurs once in a month because egg is released by female ovary once every month in the middle of menstrual cycle.