★ Integumentary System Quiz
The substance produced by the skin that helps to prevent skin cancer by blocking UV rays from damaging DNA is
A. sebum
B. adipose
C. keratin
D. melanin
Select your answer:
Topics:
Germs & Diseases Tissues of The Body Measles and Hib Nail Diseases and Disorders Biochemistry: Carbohydrates and Lipids Health Related Fitness Teeth and Microbes Head and Neck Anatomy Nail Enhancement Dentistry Adaptive Immune System Respiration Anatomy and Physiology Enzymes and Movement of Substances Bacteria Structure The Musculoskeletal SystemOther quiz:
Respiratory System › ViewWhich respiratory structure is supported by rings of cartilage?
A. trachea
B. alveolus
C. bronchiole
D. pharynx
The nervous system & brain › View
The central nervous system is comprised of the:
A. peripheral nervous system and autonomic nervous system.
B. spinal cord and somatic nervous system.
C. brain and spinal cord.
D. peripheral nervous system and nervous system.