This is an illustration of the developing neural tube. The line points to one of the brain's major divisions, the

Unlike other hallucinogens, Salvinorin A acts as a kappa opioid receptor agonist

Indicate whether the statement is true or false

Early-maturing boys are more likely __________ than late-maturing boys

a. to engage in negative attention-getting behavior b. to score better on tests of intellectual ability c. to be perceived as leaders by their peers d. to accept gender stereotypes e. to drop out of school