| http://www.w3.org/ns/prov#value | - Thus the observations in the respiratory system are consistent with our observations in the digestive tract, with neither organ highlighting a role for the vasculature in NCC migration.Overall, our results make sense from an evolutionary point of view, since the nervous system is already present in invertebrates such as nematodes (which lack a vascular system and diffuse oxygen through tracheoles)
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