"Organisms with features best adapted to their environments are more likely to survive and reproduce." To whom might this statement be attributed?

Whenever six-year-old Aaron gets upset, he begins to cry and suck his thumb. Aaron is using which defense mechanism?

a. regression b. sublimation c. repression d. reaction formation

Currently, approximately what percentage of births in the United States are delivered through home births?

a) 1% b) 3% c) 15% d) 23%