What reproductive strategy is highlighted by the fact that the female hydrates her bladder before laying eggs?

Answer

The jelly mass surrounding the eggs requires significant fluid to form properly and keep the clutch viable

The pair descends to the water so the female can fill her bladder because the jelly mass surrounding the eggs requires significant fluid content to form properly and maintain clutch viability.

What reproductive strategy is highlighted by the fact that the female hydrates her bladder before laying eggs?
taxonomyanimalclassificationfrogTree Frog