★ Human Body Quiz
Why is exposure to good amount of sunlght important to the skin?
A. skin becomes stretchable
B. skin becomes moisturized
C. skin produces vitamin D
D. skin tans
Select your answer:
Topics:
Transportation and Excretion ESR (RBC sed rate) Gene Cloning Anatomy and Physiology Entomology The Musculoskeletal System Health and Medicine Biochemistry: Carbohydrates and Lipids Major Internal Organs of the Body Enzymes and Movement of Substances Transportation in Organisms Laboratory Careers Terms for The Skeletal System Infection Detection Nucleic AcidsOther quiz:
Enzymes and ATP Structure › Viewsubstances that speed up reactions without being permanently altered
A. reactants
B. solvents
C. inhibitors
D. catalysts
Urinary System Medical Terms › View
urination at night is known as
A. nocturia
B. dysuria
C. ketonuria
D. polyuria