Select your answer:
Topics:
Cardiology Heredity Type 1 Diabetes Brain ology & phobia Human Urinary System Anatomy Muscles Musculoskeletal/Endocrine Systems DNA Structure and Function Dentistry Skull Circulatory & Respiratory System Transportation Excretion-Dialysis Asexual/Sexual ReproductionOther quiz:
Transport System in Man › ViewWhat is a major organ used in the circulatory system?
A. Lungs
B. Kidneys
C. Liver
D. Heart
Human Organs › View
What body system includes the kidneys and bladder?
A. circulatory system
B. reproductive system
C. digestive system
D. urinary system