A(n) ________ is the region of the molecule that is recognized by antibodies.

A. epitope
B. antibody monomer
C. major histocompatibility complex (MHC)
D. hapten
E. antigen


Answer: A

Anatomy & Physiology

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Free amino acids are absorbed into the blood stream by ________.

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The rectus abdominis is a ________ muscle, while the rectus femoris is a ________ muscle.

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Anatomy & Physiology

Centers that regulate the rate and depth of breathing, known as the pneumotaxic and apneustic centers, are located in the ________.

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Anatomy & Physiology