Question

describe in brief the changes the uterus undergoes

1) to receive the zygote

2) if zygote is not formed.

Answer 1

1) there become a thick layer of muscles to receive the zygote so that the zygote will not have any harm and the zygote will be safe for further growth

2) if the zygote is not formed the uterus muscles , blood vein , blood, and the unfertilized egg is expelled form the female body through vagina..this is called menstruation

Answer 2

HEY FRIEND...
HERE'S UR ANSWER...
____________________________

◆The changes occurs in uterus when it receive the zygote=>
A thick layer of muscles is formed to receive the zygote so that the zygote willn't get any type of harm and grow safely.

◆The changes that occurs in the uterus when the zygote is not formed=>
When the zygote is not formed the thick lining of muscles get ruptured and the blood from the blood vessels comes out of the vagina with taking the unfertilized egg and other toxin materials which is also known as mensuration.
______________________________
HOPE IT HELPS U....