Answer:
A group of organs working together perform a specific function makes up an organs SYSTEM.
There are exactly 11 organ system in the body, it includes the following:
Respiratory system
Circulatory system
Digestive System
Nervous system
Skeletal system
Muscular system
Endocrine system
Excretory system
Integumentary system
Lymphatic system
Reproductive system
#CarryOnLearning
