urinary system
i think a hydra has a incomplete digestive system called the-gastrovascular system
any kind of food.
if you are looking for an aquatic turtle, map and musk turtles are generally the smallest. In most aquatic turtles the male stays much smaller than the female. I would suggest Texas maps as the males grow to the maximum of 3.5".
The palomino horse a monogastric digestive system, (it has a single stomach with a single stomach chamber, as opposed to a ruminant digestive system, which has a four-chambered stomach. )
digestive system like stomach esophagus small intestens and all kind of digestive systems
Smooth muscle is found in the blood vessels and digestive system, among other locations. Smooth muscle is involuntary.
Sharks have a simple digestive system that consists of a stomach and intestines. They lack a pancreas and gallbladder, so they rely on their liver for producing enzymes for digestion. Sharks are known for having a relatively short and efficient digestive process.
Hepatitis C is the answer Google it if u don't believe it.
I am pretty sure they have simple but very complex digestive systems
what kind of turtle?
In addition to the water vascular system responsible for movement and feeding, you could expect to find a digestive system in a starfish. This system includes the stomach and digestive glands for processing food.
the loggerhead turtle