Visible light is between _____ and _____ nm within the electromagnetic spectrum

Which of the following people exhibits behavior that is most likely to lead to the diagnosis of Tourette's disorder?

a. Barry, who has motor and verbal tics b. Stephanie, who suffers epileptic seizures c. Manuela, who has difficulty moving her arms and legs d. Sid, who suffers frequent dissociative episodes

A critical period in development occurs in the embryonic stage of prenatal development.

a. true b. false