Relacionar Columnas Animal classificationVersión en línea Classify these sentences acording to vertebrates or invertebrates por Juan Antonio Vera 1 They represent the 98% of animals on Earth 2 They have got an internal skeleton 3 They own spinal cord and a developed nervous system 4 They can be classified in mammals, reptiles, fishes, birds and amphibians 5 They haven’t got internal skeleton or spinal cord Invertebrates Invertebrates Vertebrates Vertebrates Vertebrates