The organisms with the highest Encephalization Quotient (EQ) ratios are
A) whales
B) dolphins
C) chimps
D) humans

Question

Quizplus · Accepted Answer

Encephalization Quotient (EQ) is a measure of relative brain size compared to body size. Humans have the highest EQ ratio among all animals, indicating their larger brain size relative to their body size compared to other species. While whales and dolphins have large brains, their body sizes are also much larger, resulting in a lower EQ ratio. Chimps have a higher EQ ratio than most other primates but still lower than humans. Therefore, the best choice of the organism with the highest EQ ratio is humans.

The Organisms with the Highest Encephalization Quotient (EQ) Ratios Are