According to Jensen and Rushton, intelligence has a strong racial component and ___.
a. IQ is negatively correlated with brain size
b. differences in drinking water purity correspond to IQ among the races
c. differences in brain size correspond to gaps in IQ among the races
d. a strong environmental component
Question 2
Which of the following is not true regarding Zeitgebers?
a. These are time givers of the body that are external.
b. They keep humans on a 24 to 25 hour cycle.
c. The primary Zeitgeber is light.
d. Zeitgebers are usually biological mechanisms.