Which of the following statements about brain size is true?
a. Elephants have a larger number of neurons in their brain than humans do.
b. Octopods have a larger number of neurons in their brains than humans do.
c. The neurons in human brains are larger than the neurons in other primates' brains.
d. The brains of leaf-eating primates are larger than the brains of fruit-eating primates.
e. The ratio of brain size to body size is larger in baleen whales than in dolphins.
A
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