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.
How many eggs does a garter snake lay? Though not all snakes lay eggs, those that do tend to hide their eggs in damp, covered areas, such as in rotting logs or under a pile of fallen leaves. Snake eggs also tend to be laid in larger batches, or clutches, than bird eggs. Black rat snakes, for example, can lay as many as 30 eggs in a single clutch.