Select your answer:
Topics:
Muscle System Chronic Diseases Food Germs & Diseases Respiratory Acidosis Cells Blood Groups Inherited & Acquired Traits Parathyroid Gland Specialties: Neurological and Geriatric Biology Assessment Eyes Eye Upper Limb Pulmonology/RespiratoryOther quiz:
Circulatory System and Nutrition › ViewThe lower chambers of the heart are known as…
A. valves
B. ventricles
C. atria
D. septum
Immunity and Vaccines › View
The cross-linkage of antigens by antibodies is known as
A. opsonization
B. a cross-reaction
C. agglutination
D. complement fixation