★ Skin Structure, Growth, & Nutrition Quiz
what is the oily secretion that lubricates the skin and preserves the softness of the hair
A. sebum
B. collagen
C. elastin
D. perspiration
Select your answer:
Topics:
Brain and Nervous System Skeleton and Muscles Arteries Lipids Circulation and Excretion Inflammation and Healing Meiosis and intro to Genetics General Anatomy HFT Vitamins Human Digestive System Ears Disease, Illness and Sickness Respiration in Organisms Principles of Microbiology The TeethOther quiz:
Heart and Blood Vessels › ViewDeoxygenated blood travels from the right atrium to the right ventricle through this valve:
A. Mitral Valve
B. Aortic Valve
C. Pulmonary Valve
D. Tricuspid Valve
Germs & Diseases › View
The body’s resistance to a disease through the presence of anitbodies is known as
A. Virus
B. Antibody
C. Vaccine
D. Immunity