Large intestine
It is part of the digestive system of a bird - it is the first major structure after the oesophagus. It is where seed is stored before being gradually fed into the rest of the digestive system.
The rectum stores stool. It is part of the digestive system.
the gall bladder is part of the digestive system because it It produces and stores the bile.
The stomach is an organ in the digestive system.
Cardiovascular and digestive.
The crop of a worm is a digestive organ that stores food before it goes through the gizzard (a digestive organ that helps break down food) so it doesnt break down the food at all. Just stores it.
Teeth belong to the digestive system. They are part of the oral cavity and play a role in breaking down food before it enters the digestive tract.
You're probably referring to the gallbladder. The gallbladder sits under the liver and produces/stores extra bile, it is an unessential organ of the body and can be removed without consequences.
The body system that the colon belongs to is the digestive system. The colon is also known as the large intestine.
In the Digestive system
A food storage sac in segmented worms, such as earthworms, is called a crop. The crop temporarily stores ingested food before it moves on to the gizzard for grinding. This helps regulate the release of food into the digestive system for more efficient processing.