Renin is a protein (enzyme) released by special kidney cells when you have a decreased salt (sodium) level or low blood volume. If you have high blood pressure, your doctor may order a renin and aldosterone test to help determine the cause of your elevated blood pressure. Test results can help guide your doctor in choosing the correct treatment.
Quick Answer. Snakes can have live births, or they can lay eggs in order to have babies. Snake can reproduce every one to three years, and they can have up to 150 snake babies at a time. Keep Learning.
Garter snakes, often called garden snakes, can have between seven to 87 babies. Identify garter snakes by learning their markings with this free video from a reptile specialist. Expert: Cordell Jaques. Bio: Cordell Jaques has worked in the pet industry for about 10 years. Filmmaker: Travis Waack.