Is it true that in a frog development takes place in water and an egg cell without protective membranes?

1) It is true that frog development takes place in water.
2) The second judgment is incorrect: the frog’s egg has protective shells. Such a shell is called gelatinous and is tertiary; in birds and reptiles it is dense, calcareous. The gelatinous membrane protects fertilized eggs (eggs) from the external environment, it swells strongly in water, and the eggs do not attract predators. In addition, it combines several hundred eggs (caviar), with its help they attach to something, for example, to coastal plants.