Assertion: jellyfish | /r/HasAspect | elementary nervous system
Facets:
value: with receptors
type: OTHER
value: of a brain
type: OTHER
value: of a central nervous system
type: OTHER
Source sentences:
text: Instead of a brain or a central nervous system, they have an elementary nervous system, or nerve net, that is scattered throughout their bodies.
text: While jellyfish do not have a brain or a heart, they have an elementary nervous system with receptors that detect light, vibrations, and chemicals in the water.