The part of the human brain that is most like that of a fish is the

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The brainstem, which is responsible for basic survival functions such as breathing and heartbeat, is the part of the human brain that is most similar to that of a fish. This is because fish have a relatively simple brain that functions primarily to maintain these basic bodily functions. In contrast, the cortex and limbic system are more evolved and specialized in humans, whereas the right hemisphere is one of two hemispheres of the brain and is not exclusive to fish or humans.

The Part of the Human Brain That Is Most Like