Question

identify the combining form or/o with its closest definition. multiple choice ileum mouth liver jejunum

Explanation:

In medical terminology, the combining form "or/o" is specifically used to refer to the mouth. "Ileum" and "Jejunum" are parts of the small intestine, and "Liver" is a different organ, so they don't match the definition of "or/o".

Answer:

B. Mouth