★ Health Quiz
A protein made by white blood cells to fight a specific pathogen.
A. Antibody
B. Antivirus
C. Allergen
D. Antigen
Select your answer:

Topics:
Properties of the Hair Sensory System Anatomy and Pathology Branches of Microbiology The Respiratory System Blood clotting Understanding Psychology Nervous System Advanced Stretching SM2 Thyroid Disease Nutrient Cycling Diseases of Digestive System Human Urinary System Transport System in Man EKG CCMA The Brain Our Control Center Nutrition and Calorific ValueOther quiz:
Components of Food › ViewWhich one of the following is water-soluble vitamin?
A. Vitamin A
B. Vitamin B
C. Vitamin K
D. Vitamin E
The Human Eye › View
What is the thin circular structure of your eye that has color?
A. Macula
B. Iris
C. Pupil
D. Cornea