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Echinoderms, like sea stars, have nervous system
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Echinoderms, like sea stars, have nervous system

User Ordnungswidrig
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6 votes

Answer:

simple radial nervous system.

Step-by-step explanation:

User Jinwei
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The answer is a simple radial nervous system.

Echinoderms do not have brains. Around their mouth, they have central rings from which nerves radially run into arms and along the body. Movement is controlled by the branches of those radial nerves.
User Jash Sayani
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