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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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How does fertilisation take place? Fertilisation occurs once in a month. Comment.
 
a. Every month, a female releases one egg. The ovary transfers this egg to the
.
 
b. Male partners ejaculate semen in the female reproductive system is called
.
 
c. In one millilitre of semen, between 
are present.
 
d. The fertilisation process begins when the 
and swims up into the fallopian tube from this location.
 
e. A menstrual cycle lasts for
. As a result, it is said that fertilisation can occur once a month because only one egg is available for fertilisation during each menstrual cycle.
Answer variants:
fallopian tube
vagina
sperm connects with the egg
28 days
40 and 300 million sperm