A specific condition or event in the environment that challenges or threatens a person is called a(n)

When benzodiazepines bind to their receptor site, they

A. release barbiturates. B. block acetylcholine receptors. C. reduce the membrane electrical potential. D. enhance the inhibitory effects of GABA.

In developing countries, what is the most common cause of death in early childhood?

a. parental abuse b. motor vehicle accidents c. illness and disease d. accidental burning