skeletal system
The genitourinary system.
The digestive system contains the liver.
Circulatory System
The digestive system contains the small intestine. It is a vital organ for nutrient absorption in the body.
The olfactory system.
the digestive system
Digestive system.
Circulatory System.
The eye contains the Retina
The Femur belongs to the skelital and the circulatory system because new red blood cells are formed in the marrow of the femur.
The skin is part of the Integumentary System, and is the largest organ in the body.
The integumentary system (which also includes hair and nails).Integumentary System