Assertion: chordate's skeleton | /r/HasProperty | backbone
Facets:
Source sentences:
text: Vertebrates (Subphylum Vertebrata) are animals that possess an internal skeleton (endoskeleton) that includes a backbone made up of a column of vertebrae (Keeton, 1986:1150).
text: Of the approximately 50,000 living chordates, 97% are vertebrates —animals whose skeletons include a backbone.
text: Of the approximately 50,000 living chordates, 97% are vertebrates —animals whose skeletons include a backbone.