★ Composition of Blood and Blood Cells Quiz
Erythrocytes contain the protein ______ that carries oxygen.
A. hemoglobin
B. melanin
C. keratin
D. collagen
Select your answer:

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Stroke Nephrology (Hemodialysis) Carbohydrates / Fat-soluble Vitamins Immunity Systematic Bacteriology Pancreas Animal Genetics and Nutrition Organization of Systems Tongue and Skin What is Psychology? Body Fluids and Blood Cells Doctor Equipments IV Therapy and Blood Transfusion Respiratory Acidosis Microorganism - DiseasesOther quiz:
Human Anatomy and Physiology › ViewThis hormone is not secreted by Hypothalamus
A. PRH
B. FSH
C. CRH
D. TRH
Health and Diseases › View
Infectious diseases are diseases caused by an organism such as a virus or a bacterium, which is called a:
A. pathogen
B. toxicant
C. pandemic
D. carcinogen