The minimum intensity of physical stimulation required to produce any sensation at all in a person is the just noticeable threshold

The neurotransmitter at the end organ of the sympathetic branch of the autonomic nervous system is

A. serotonin. B. dopamine. C. norepinephrine. D. GABA.

Couples who engage in open relationships – where each partner is free to engage in sexual relations with other individuals – are described as polyandrous

Indicate whether this statement is true or false.