The difference is that the second "frogs glottis" has a question mark.
The glottis is used to breath and vocalize
The glottis is used for making sounds and for breathing andalows air to enter through a opening in the back of the mouth
to help it breath :)
I have heard that a frogs glottis is larger than a humans.... don't know much else... not even sure if a human has a glottis! BYE! I AM CIL! = P