In a recent study, fathers with lower levels of ________ engaged in more optimal parenting practices with their infants.

Prisoners of war placed on a semistarvation diet in which their food intake is cut in half are likely to:

a. lose half their original body weight. b. show an increased interest in sex and politics. c. spend a great deal of time daydreaming about food. d. do all the above.

The skin has approximately how many nerve endings for temperature?

a. 200,000 b. 500,000 c. one million d. three million