The fact that Encephalization Quotients (EQs) of organisms have generally increased with time provides evidence for
A) cross-breeding between organisms
B) artificial selection
C) genetic mutations
D) convergent evolution toward intelligence

Question

Quizplus · Accepted Answer

Encephalization Quotients (EQs) are a measure of the ratio of an animal's brain size to its body size. Studies have shown that EQs have generally increased with time, suggesting that there has been convergent evolution toward intelligence. This means that various species have independently developed similar cognitive abilities in response to similar environmental pressures, such as the need to solve complex problems or navigate social interactions. This is supported by the fact that many different groups of animals, including primates, dolphins, elephants, and certain bird species, have all shown increases in EQ over time. There is little evidence to suggest that cross-breeding, artificial selection, or genetic mutations have played a significant role in this trend.

The Fact That Encephalization Quotients (EQs) of Organisms Have Generally