you may visit a doctor
don't sit in your home and wait , just go and tell your parents! it may become a serious problem ! tell your parents, what are you waiting for ?!! visit a doctor
The line of defense that is his immune system exhibiting is that of "first line of defense." There are only 3 lines of defense in the immune system. The first line of defense are a combination of physical and chemical barriers that prevent all types of foreign agents from penetrating the outer layer of the body. In this case, it is the nasal cavity.
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Answer:
Explanation:
Starting with the ovaries ,it produces and release eggs into the Fallopian tubes where it waiting to make its way to the sperm , if the eggs are not fertilized by the sperm , the lining of the uterus that is there to prepare itself for a fertilized egg will shed (due to lack of pregnancy ) causing menstruation.
They all improve your physical health but (jogging)<<<ANSWER is the least which improves.