Final answer:
Aldosterone secretion is stimulated by salt deprivation and a decreased blood volume. Aldosterone helps regulate sodium and water levels in the body by increasing the reabsorption of sodium and water in the kidneys.
Step-by-step explanation:
Aldosterone secretion is stimulated by salt deprivation and a decreased blood volume. Aldosterone is a hormone that regulates sodium and water levels in the body. When there is salt deprivation or a decrease in blood volume, the body needs to conserve water and sodium, so aldosterone is released to increase the reabsorption of sodium and water in the kidneys. This helps maintain adequate blood volume and sodium levels in the body.