Home › CBSE Class 9 › biology › c9kingdomanimalia › Per NCERT, animals WITHOUT a notochord are class…
Per NCERT, animals WITHOUT a notochord are classified as what — and animals WITH a notochord (or vertebral column derived from it) are which?
AMammals and reptiles
BInvertebrates (without notochord) and Chordates (with notochord, which in vertebrates becomes the vertebral column)
CLiving and non-living
DPredators and prey
Answer & Solution
Correct answer: B. Invertebrates (without notochord) and Chordates (with notochord, which in vertebrates becomes the vertebral column)
Per NCERT §12.6.5, invertebrates lack notochord; chordates have one. The other options describe different distinctions.
Related questions
Per NCERT 'Threads of Curiosity' (§12.10), the Purple Frog (Nasikabatrachus sahyadrensis) Per NCERT, which phylum has SPINY skinned animals with internal calcareous support — e.g. Per NCERT, which phylum has SOFT bodies with organ-system organisation — typically with a Per NCERT, which phylum is the LARGEST animal phylum — characterised by JOINTED APPENDAGESPer NCERT, which phylum consists of SEGMENTED worms (e.g. earthworm) — showing body segmenPer NCERT, which phylum consists of ROUNDWORMS — featuring a tube-like body with TWO openiPer NCERT, which phylum is the FLATWORM group — characterised by BILATERAL SYMMETRY and diPer NCERT, which animal phylum shows TISSUE-LEVEL organisation, has tentacles for capturin