★ The Circulatory System Quiz
The heart beats at least _____ million times during an average person’s life.
A. 2400
B. 500
C. 3500
D. 1000
Select your answer:
Topics:
Type of Dementia Health and Diseases Contemporary Nutrition Issues Immune System Nursing Vocabulary Stress Respiration, Immune System, Blood Cells Muscle System Diagnostic Tools Immunology Brain, Neurons and The Nervous System Biotechnology Histology - Tissues Oral Hygiene Deficiency DiseaseOther quiz:
Disease › Viewaffected by harmful bacteria, a virus, etc
A. Infected
B. Polluted
C. Collapsed
D. Damaged
Cardiovascular System › View
What is the main organ of the circulatory system?
A. small intestine
B. bone
C. lungs
D. heart