In Stage __________, a new brain wave begins to appear. __________ waves are very large and slow and signal deeper sleep and a further loss of consciousness.

Your teenage son describes a new male classmate as "pretty weird." He tells you that this classmate "looks more like a girl than a boy" because he's not growing facial hair like other boys

He also says that the classmate seems to have difficulties reading and that a lot of kids don't like him. Of the following, which is most likely to be true? A) Your son's new classmate is an XX male. B) Your son's new classmate is an XY female. C) Your son's new classmate is an XXY male. D) Your son's new classmate has Klinefelter syndrome.

Parents tend to be especially committed to ensuring the gender typing of

A) sons more so than daughters. B) children of the other sex from themselves. C) children of their own sex. D) daughters more so than sons.