Which prefix means "middle" or "intermediate"?
O macro-
O mal-
O meso-
O micro-

Meso-

Explanation:

Macro means “big.” Micro means “small,” “tiny,” or “microscopic.” And mal means “bad” or “badly.” The only prefix, meso, means “middle” or “intermediate.”

Well, l think that some effective communication is, emotional barriers and lack of attention, interest distraction or irrelevance. also some physical disabilities such as hearing problems or speech difficulties.      l hope i am correct  and you good luck.

I'm sorry but i don't think i can answer this because me and you probably don't have the same healthy fitness zone standards score i wish i could so sorry