You are about to undergo delicate brain surgery that requires great skill on the part of the surgeon. As the surgical team wheels you into the operating room, you hope the surgeon has a high level of _____

_____ is credited with developing the learned helplessness theory of depression.

A)Aaron Beck B)Albert Ellis C)Martin Seligman D)Rene Spitz

The molecular structure of peptide hormones involves

A) four interconnected rings of carbon atoms. B) short chains of amino acids. C) long chains of amino acids. D) modified tyrosine molecules.