Assertion: vertebrate's system | /r/HasAspect | brain and spinal cord
Facets:
Source sentences:
text: Vertebrates are bilaterally symmetrical and have an internal skeleton of bone or cartilage, a nervous system divided into brain and spinal cord, and not more than two pairs of limbs.
text: Vertebrates are bilaterally symmetrical and have an internal skeleton of bone or cartilage, a nervous system divided into brain and spinal cord, and not more than two pairs of limbs.