________ is a neurodevelopmental disorder with an estimated heritability rate greater than 90%.

Nightmares are ______, and night terrors are ______

a. rare; rare c. rare; common b. common; rare d. common; common

A drug that binds with a postsynaptic receptor, but does not open ion channels, would be termed a(n)

a. direct agonist. b. ligand. c. direct synergist. d. direct antagonist. e. indirect antagonist