Biology
Related Questions
The female sex hormones secreted by the ovaries are
- progesterone and testosterone
- progesterone and oestrogen
- thyroxine and testosterone
- oestrogen and testosterone
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When an ovum fuses with a sperm outside the body, it is called _________ fertilization.
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Fertilization of the ovum takes place in the _________.
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The females have 28 day-long reproductive cycle called _________.