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What are the two little black dots at one end of the planarian called? What do they do for this organism?
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What are the two little black dots at one end of the planarian called? What do they do for this organism?

User Brad Zeis
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Two little dots at the end of Planaria are called eye-spots.
Eye-spots (also known as ocelli) have a role in the vision of Planaria. The eye-spots have a possibility to detect the intensity of light and are used to move away from light sources.
User Viktor Haag
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