Pancreas<span>The list below provides a selection of the roles of glands in the endocrine system:Pancreas – regulates blood glucose levels. Adrenal gland – increases blood glucose levels and speeds up heart rate. Thyroid gland - helps to regulate our metabolism.</span>
Answer:
erectile dysfunction or urinary problems
Explanation:
because ultimately if something is causing a stop or retreat in his sexual life these are probably the main problems another possibility could be std or a STI.
The system responsible for regulating metabolic activities of the body would be the Digestive system because it breaks down the food to store in the body to make body fat and to get rid of through waste.
Short Answer: The Digestive System