Twin studies reveal that empathy is __________ heritable

Dreamlike experiences, which an individual has trouble distinguishing from reality and often occur at the onset of sleep, are known as ________

Fill in the blank(s) with the appropriate word(s).

Some research suggests that the stresses of serious illness may make strong

marriages ____ and may make troubled marriages ____. a. better; worse b. worse; better c. worse; worse d. better; better e. better; stay the same