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.
About 4 months after mating the young are born alive. The western plains garter snake gives birth to about 20 to 30 young, but 85 have been born in one litter. They are 7.5 to 9 inches (19-23 cm) long and are miniature versions of the adults, fully capable of hunting.he western plains garter snake gives birth to about 20 to 30 young, but 85 have been born in one litter. They are 7.5 to 9 inches (19-23 cm) long and are miniature versions of the adults, fully capable of hunting.