Biology, 31.12.2019 19:31 baeethtsadia
Annelids, like the earthworm, and arthropods, like insects or spiders, have three main structures in their nervous systems:
a. a brain, a dorsal nerve cord, and a ventral nerve cord.
b. a brain, segmented ganglia, and a ventral nerve cord.
c. segmented ganglia, a dorsal nerve cord, and a ventral nerve cord.
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Annelids, like the earthworm, and arthropods, like insects or spiders, have three main structures in...
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