Questions: The hormone thyroxine (TH): is a diuretic stimulates the release of glucocorticoids increases metabolism throughout the body is only responsible for building muscle

The answer is the third one: increases metabolism throughout the body.

Explanation for each option:

• "is a diuretic": This is incorrect. A diuretic is a substance that promotes the production of urine. Thyroxine (TH) does not have this function.
• "stimulates the release of glucocorticoids": This is incorrect. Glucocorticoids are released from the adrenal cortex, primarily in response to adrenocorticotropic hormone (ACTH) from the pituitary gland, not thyroxine.
• "increases metabolism throughout the body": This is correct. Thyroxine (TH) is a hormone produced by the thyroid gland that plays a crucial role in regulating metabolism, increasing the metabolic rate of cells throughout the body.
• "is only responsible for building muscle": This is incorrect. While thyroxine can influence muscle function and growth, it is not solely responsible for building muscle. Its primary role is in regulating metabolism.

Summary: Thyroxine (TH) increases metabolism throughout the body.