The only medical condition with a higher incidence than mental disorders is

To summarize what is known about psychotherapy effectiveness, we can say that

a. the chances of an average client benefiting significantly are impressive. b. for disorders that have a brief duration, treatment provides no obvious benefit. c. degree of improvement and number of therapy sessions are unrelated. d. all therapy outcomes are positive or neutral, none are negative.

One key purpose of the amniotic fluid is to a. provide the embryo with nutrients

b. stimulate development of neurotransmitters. c. screen the flow of blood between mother and embryo. d. maintain a constant temperature for the embryo.