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The shape of a perch's stomach helps it to digest its food easily. It's shape also helps it to swim effortlessly through the water.
Neons shape is about as round as your stomach so its pretty big
A cat's stomach changes its shape and size according to its fullness. Empty, an adult cat's stomach is about the size of a small human fist. It stretches as the cat eats.
U shaped
The stomach is an organ of the digestive system that has the shape of a bag, which prevents it to be symmetrical.
The inside of a frog's stomach has hard ridges. These hard ridges help mix the food with the digestive fluids when the stomach muscles churn the contents. The shape of these hard ridges is actually the shape of frog's stomach.
UMM THEY ARE YOUR ABS.
U shaped
Because every human is different in size and shape everyones stomach is a different length, so there is not a certain length of the stomach.
You need to hold your stomach in when doing crunches. If you push your stomach out the muscle will shape that way.
Typically, the pig's stomach is similar to human's stomach. It has been generally referred to as being shaped like a bean.