How do iguanas maintain water and ion balance?

Question

Quizplus · Accepted Answer

Marine iguanas have a specialized salt gland in their nose which produces a highly concentrated salt solution that is expelled, helping them to maintain their water and ion balance. They do not produce urine with a higher ion concentration than blood, nor do they need to drink fresh water on land. Although they use their kidneys to excrete excess salt, this is not the primary mechanism for maintaining their water and ion balance.

How Do Iguanas Maintain Water and Ion Balance