According to charles darwin, what was the result of natural selection?
a. over time, animals lost specialization.
b. over time, species became better adapted to their environment.
c. over time, animals became more like humans.
d. over time, species became less intelligent.

explanation: d

(202 bc - 220 ad) dynasty started by lui bang; a great and long-lasting rule, it discarded the harsh policies of the qin dynasty and adopted confucian principles; han rulers chose officials who passed the civil service exams rather than birth; it was a time of prosperity