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.
Answer:
A. Filtering Blood to Remove Unwanted Waste
Explanation:
Excretory system is comprised of Kidneys, liver, lungs and skin.
Answer is Alcohol, and Tobacco, and followed by Marijuana.
It will help you.
Answer:
B. Participate in more activities like weight training
Explanation:
Sarcopenia is a disease in which an individual starts losing muscle tissues due to aging and no exercise. Therefore, in this condition, participation in weight training (which includes eating healthy food) is recommended because it will help develop more muscle fibers and thin and weak muscle fibers will become stronger.
Conclusively, sarcopenia happens due to lesser physical activities in individuals and it is usually treated with appropriate muscle training.