The onset of puberty in females triggers the shedding of unfertilised eggs and the LINING OF THE UTERUS. The lining of the uterus is shed each month if the mature egg is not fertilized. This process is called menstruation. The first menstrual period a young girl will have marks menarche.
Specialized hormones such as progesterone and estrogens play a vital role in the development and shedding of the lining of the uterus in each menstrual cycles.
All of the above . because of today society
<span>Sleep deprivation can increase a teen's chance of drug abuse </span><span>and d</span><span>rug abuse usually increases sleep problems.
</span>hope that helps!!!
Answer:
I think it may be tattooing my second nope I really don't know what it is you could probably
Well the correct answer is air pollution ur welcome
