Multiple choice

The size of the orangutan's brain is  ____________________  the human brain.

  1. 1/3 of

  2. 1/2 of

  3. double the size of

  4. almost the same as
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Orangutan brains are significantly smaller than human brains, typically measuring about one-third of the volume of an average human brain. This reflects the evolutionary differences in cognitive capacity between the two species.

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