7. The cell theory was
a. first identified in 1665
b. the end result of many scientific investigations
c. described by Rudolf Virchow
d. Both (a) and (b)

Which of the following provides the strongest evidence of the role of heredity in determining intelligence? the intelligence scores of fraternal twins are more similar than those of ordinary siblings. the intelligence scores of adopted children show relatively weak correlations with scores of adoptive as well as biological parents. the intelligence scores of identical twins raised together are more similar than those of identical twins raised apart. the iq scores of identical twins raised separately are very similar.