Answer:
A
Explanation:
characteristics refers to the feature belonging to a person
Internal communication and upward communication
Other information that is required on a chemical label are hazard statements.
Synthetic testosterone was applied to men with significant medical condition who have low levels of testosterone. Moreover, it is also used by millions to enhance sexual desire, energy and mood. Also treat weak erections and osteoporosis for it help increase bone density.
However, adding synthetic testosterone to the body system produced a tendency that the body will stop being able to make natural testosterone and these can be felt when men stop testosterone therapy.
The circulatory system is responsible for bringing food and oxygen to every cell in your body. The respiratory system is responsible for carrying oxygen and carbon dioxide in and out of your body.
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