★ Skin Structure, Growth, & Nutrition Quiz
What helps protect against UV rays?
A. sebum
B. keratin
C. elastin
D. melanin
Select your answer:
Topics:
Hematologic System Who am Eye? Visual Impairment Cell and Muscle Histology Beneath the Skin Circulation and Excretion Heart Structure and Double Circulation Skin Skeletal Tissue Biocomposite PBS Routine Testing Blood and Hematology Muscle Anatomy Parts of the Brain Medicine on the Western FrontOther quiz:
Genetics Vocabulary › ViewDominant alleles are written using
A. capital letters
B. lowercase letters
C. both types of letters
D. neither
Immunology › View
Complement is essential for our body’s response to infection, by being heavily involved in:
A. phagocytosis
B. inflammation
C. T-cell activation
D. B-cell differentiation