★ Integumentary System Quiz
Skin color is due to a pigment called
A. Keratin
B. Melanin
C. Chromatin
D. Epithelium
Select your answer:

Topics:
ADVBIO Genetics Musculoskeletal Disorders The Ear Cellular Components Stimuli and Responses in Humans Pollution Diseases and Preventions Communicable Disease Heterotrophic Nutrition Nutrition - Digestive System Nutrition In Animal Bariatric Surgery and Diabetes Eczema Respiratory System Endocrine System DisordersOther quiz:
Characteristics of Life › ViewSomething that has never shown the characteristics of life and never will:
A. dormant
B. nonliving
C. living
D. dead
The Brain › View
After age 30, the brain shrinks exactly 0.25% in mass each year.
A. TRUE
B. FALSE