____________ of men and _______________ of women in jails suffer from a serious mental illness or post-traumatic stress disorder

Dr. Worthing injects radioactive markers into Tina's bloodstream to see what brain areas are most active while she plays the piano. Dr. Worthing is using

A) ultrasound. B) positron emission tomography. C) computerized tomography. D) functional magnetic resonance imaging.

In general, we are more likely to help those whom we are closely related than others. Which of the following offers support for this?

a) Empathic joy hypothesis b) Negative-state relief model c) Kin selection theory d) Natural selection hypothesis