★ Circulatory System Quiz
How long does a red blood cell live on average?
A. 50 days
B. 100 days
C. 120 days
D. 200 days
Select your answer:

Topics:
Unintentional Injuries Careers in Health Care Parts of the Brain Blood and Bones Digestion and Microbes Disease, Illness and Sickness Anatomy and Histology Anatomy Bones Prehabilitation and Conditioning Nervous and Endocrine System Agents of Disease Enzyme Cell Injury Asexual/Sexual Reproduction The BloodOther quiz:
Metabolism › ViewWhich substance is produced during cellular respiration?
A. Oxygen
B. Sugar
C. ATP
D. Vitamins
Digestive System › View
chemical digestion happens here
A. stomach
B. liver
C. pancreas
D. large intestine