All of the following enhance the absorptive effectiveness of the small intestine except

A) the circular folds.
B) the villi.
C) the microvilli.
D) intestinal movements.
E) rugae.


E

Anatomy & Physiology

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Acquired immunity is a system in which lymphocytes respond to particular antigens they encounter during a lifetime. Another name for acquired immunity is ________ immunity.

Fill in the blank(s) with the appropriate word(s).

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The ________ bone is unusual because it doesn't contact another bone

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