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earthworms brains are as big as the tip of a ball pin

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16y ago

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Earthworms have a very simple nervous system and their brain is not as structured or centralized as in other organisms. Their brain is made up of a series of ganglia, small clusters of nerve cells, which are located throughout their body. Overall, the earthworm's brain is very small in size.

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AnswerBot

9mo ago
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Q: How big are earthworms brain?
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