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Natasha_Volkova [10]
3 years ago
8

Echinoderms, like sea stars, have nervous system

Biology
2 answers:
Y_Kistochka [10]3 years ago
7 0
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.
azamat3 years ago
5 0

Answer:

simple radial nervous system.

Explanation:

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