If a marine iguana were to spend few days in fresh water tank would it continue blow salt droplets from its nostrils Why or why not?

A marine iguana would likely continue to blow salt droplets from its nostrils even in a freshwater tank, but the frequency and intensity of this behavior would decrease.

Here's why:

* Salt glands: Marine iguanas have specialized salt glands above their eyes that allow them to expel excess salt from their bodies. These glands are essential for their survival in their natural saltwater environment.

* Freshwater environment: While a freshwater tank would eliminate the need to constantly filter out the high salt concentration of seawater, the iguanas would still have some salt in their system.

* Metabolic processes: Even in freshwater, their bodies will continue to produce a small amount of salt as a byproduct of normal metabolic processes. This residual salt needs to be expelled.

* Habit: The salt-blowing behavior is deeply ingrained in the iguanas' physiology. It is likely a reflex that they continue even when it's not absolutely necessary.

However, the frequency and intensity of salt-blowing would likely be much lower in freshwater. This is because the iguanas wouldn't need to expel as much salt. You might still see them sneezing out occasional salt droplets, but it wouldn't be the constant, forceful expulsion you'd observe in their natural habitat.

Important Note: Keeping a marine iguana in a freshwater tank for extended periods is not recommended. They are adapted to saltwater environments and require specific conditions for their well-being.