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:
Musculoskeletal Injuries Thrombosis, Emboliya Antibiotic in Orthopaedics Nervous System/Endocrine System Types of Reproduction Radiation and Health Neuron Structure Cell and Tissue Teeths Disease and Immunity Forensic Odontology Renal Vascular Therapeutic Services Roots Skin and DerivativesOther quiz:
Excretion › ViewMarine animals that have body fluids with a solute concentration equal to that of the surrounding sea water are:
A. osmoregulators
B. osmoconformers
C. osmoinformers
D. hyperosmotic
Medicine on the Western Front › View
What was the aim of the Regimental Aid Post?
A. most of the operations
B. immediate first aid and get men back fighting
C. dealt with more serious injuries close to the front line
D. continued treatment or sent soldiers home