Answer :
If u want defination then; It is the group of organs that break down food and absorb the nutrients which are converted to give us energy. Like our mouth,intestines,stomach,etc. : )
The digestive system breakes the food into smaller pieces and it helps in the absorption of nutrients and their utilization by the body. The following picture shows how a digestive system works-
![View image shrishanayak6](https://hi-static.z-dn.net/files/d85/30386f28c02d459f3329af32789cc75a.png)