Broca's area was discovered using the extirpation method

What have researchers concluded from research on the concordance rates of monozygotic (MZ) and dizygotic (DZ) twins?

a. The role for genetics is much larger for males than it is for females. b. Genetic factors play a small role in etiology of alcoholism among women. c. Similar concordance rates for MZ and DZ twins suggest no significant role for genetics. d. Concordance rates suggest a role for genetics, and higher concordance rates among males reflect the higher prevalence of alcoholism among males.

The _____ states that emotional feelings result when an individual becomes aware of a physiological response to an emotion-provoking stimulus (for example, feeling fear because of trembling)

a) LeDoux theory b) Schachter-Singer theory c) Smith-Scott theory d) James-Lange theory