Yes.
Yes. The horse and rat do not have gall bladders.
yes,frogs have bladders
yes
Frogs do have bladders, but I don't think there is such a thing as a "small bladder" in a frog. I suspect that the asker may be referring to the "gall bladder". If so, please see the related link below which shows a frog's gall bladder, below its liver.
what does a frogs blater do
The black bears are killed for their gall bladders, which is used by oriental quack medicines.
There is a Phrygian cap, a folded over part of a gall bladder. It is a harmless variant that is seen in a small percent of people who have ultrasound exams of their gall bladders.
Gall Bladder
A gall bladder's job is to help with fat digestion and as in most types of bladders, it concentrates. In this case bile made by the liver.
gall bladder is exactly the same sometimes people replace there's with those of frogs
One-third of all patients with gallstones never experience a second attack. For this reason many doctors advise watchful waiting after the first episode. Reducing the amount of fat in the diet or following a sensible plan of gradual weight loss
bladders bladders