to excrete is to get rid of something from your body. In this case you are probably referring to the end of the gastrointestinal system and possibly the urinary system. Either way, they get rid of wastes in the body that if built up would cause harm to the rest of the body.
Also known as the urinary system, one of 11 major organ systems found in humans and other vertebrates; its main function is to maintain the volume and composition of body fluids within normal limits
Control homeostasis
The main function of the excretory system is to get rid of the waste that is in your body.
The excretory system removes liquid wastes.
The digestive is part of the excretory system in terms of the substances having to get out of the system themselves The digestive is part of the excretory system in terms of the substances having to get out of the system themselves
The excretory system is beast
The excretory system.