★ Skin Structure, Growth, & Nutrition Quiz
What helps protect against UV rays?
A. sebum
B. keratin
C. elastin
D. melanin
Select your answer:
Topics:
EKG Medical Term Parts of the Body Biological Organisms Classification Health Related Fitness Pancreas The Energy Nutrients Cells & Body Systems Auditory and Vestibular Neurology The Blood Animal Genetics and Nutrition Coronary Heart Diseases Circulatory, Artery, Vein - basics Bone, Spine, and Joint Pathology Liveability Animal NutritionOther quiz:
Immunity & Cancer › ViewCell mediated immunity is provided by
A. B-Lymphocytes
B. Plasma cells
C. Interferon
D. T-Lymphocytes
Immunology › View
In the precipitin curve, the zone where there is maximum antibody bound to the least amount of antigen is known as:
A. Ozone
B. Prezone
C. Postzone
D. Zone of Equivalence