★ Skin Structure, Growth, & Nutrition Quiz
What is the principal component of hair and nails
A. collagen
B. melanin
C. elastin
D. keratin
Select your answer:
Topics:
Infant Nutrition Infectious Disease and Pathogens Alzheimer Disease and Dementia Tib/Fib, Knee and Femur Bariatric Surgery and Diabetes Mechanical Digestion Cell Theory and Cellular Structure Gastroenterology Musculoskeletal System Medical Terminology Regulating the Cell Cycle Health and Wellness Transport System Biology for Engineers Cariology Illness and SymptomsOther quiz:
Terms for The Skeletal System › ViewARTHRALGIA MEANS
A. THE CONDITION OF BEING SHORT
B. PERTAINING TO THE KNEE
C. JOINT PAIN
D. MUSCLE WEAKNESS
Respiratory System › View
Which part of the human respiratory system is a thin, moist membranous structure where gas exchange occurs?
A. trachea
B. bronchus
C. epiglottis
D. alveolus