Question

write in brief changes takes place in fertilized egg​

Answer 1

Explanation:

After fertilisation egg is attached to the utrine wall in uterus this process is called implantation. Then full development of embryo takes place in uterus this process is gestation period. Food is provided by the feotus by placenta.

When egg is not fertilised then it expelled through vagina of the body with the broken thick layer of uterus. This process is called menstruation cycles.

Answer 2

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