__________ provides the codes that identify all diagnoses physicians give patients

A single group of cells possessing identical aberrant phenotypes is defined as:

a. Monoclonal b. Clonal c. Tumorigenic d. Contour gated

The lining of the small intestine contains cells that have _______________, which increase the surface area of the small intestine so that it can absorb many nutrients. 

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