The ability of antibodies to block specific sites on pathogens so that they cannot bind to cell receptors is called _______.
A. agglutination
B. activation
C. neutralization
d. precipitation
Ans: C. neutralization
Anatomy & Physiology
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What type of neuron connects sensory and motor neurons in neural pathways?
A) interneurons (association neurons) B) afferent neurons C) efferent neurons D) bipolar neurons
Anatomy & Physiology
Alveoli are kept clean by the action of
A. macrophages. B. platelets. C. antibodies. D. surfactant.
Anatomy & Physiology
The two major cations in the body are
A) calcium and sodium. B) sodium and chloride. C) chloride and bicarbonate. D) sodium and potassium. E) magnesium and chloride.
Anatomy & Physiology
The oldest definite primates, adapids and omomyids, are classified as early __________.
A) cercopithecines B) hominins C) prosimians D) anthropoids
Anatomy & Physiology