When _____ waves outnumber _____ waves, we enter the first stage of sleep

After prolonged adaptation to dim light, where in your retina do you see best?

a. Toward the periphery b. In the fovea c. In the area surrounding the blind spot d. In all parts of the retina equally

What would cause a genetic female to develop a partly masculinized anatomy?

a. excessive levels of alpha-fetoprotein in her blood b. exposure of her mother to stressful experiences late in pregnancy c. exposure to less than the usual amount of estrogen during an early sensitive period d. exposure to more than the usual amount of testosterone during an early sensitive period