Question

In which phylum the nervous system develops first?

Answer 1

Coelenterates is the phylum where nervous system develops first.

Answer 2

hi user

The evolution of nervous systems dates back to the first development of nervous systems in animals (or metazoans). Neurons developed as specialized electrical signaling cells in multicellular animals, adapting the mechanism of action potentials present in motile single-celled and colonial eukaryotes.

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