1 The price of whale watching depends on several factors such as the location and the accommodations offered by the establishment. 2  Another factor is the date on which the tour will be done. On average, a trip can range anywhere from $20 to as much as $45 per person for a 4 hour trip. 2  For example, NewportWhales.com offers three levels of pricing which are categorized by adults, juniors and seniors.
The reninâangiotensin system (RAS) or the reninâangiotensinâaldosterone system (RAAS) is a hormone system that regulates blood pressure and fluid balance.ngiotensin II also stimulates the secretion of the hormone aldosterone from the adrenal cortex. Aldosterone causes the tubules of the kidneys to increase the reabsorption of sodium and water into the blood, while at the same time causing the excretion of potassium (to maintain electrochemical balance).
1 Measure the amount of aldosterone released into the body by the adrenal glands. 2  Check for a tumor in the adrenal glands. 3  Find the cause of high blood pressure or low blood potassium levels.igh levels of both renin and aldosterone are normally present when the body is trying to conserve fluid and salt (sodium). When a tumor that makes aldosterone is present, your aldosterone level will be high while a renin level will be low. Usually a renin activity test is done when the aldosterone level is measured.