Matching Pairs Animal classificationOnline version Classify these sentences acording to vertebrates or invertebrates by 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 haven’t got internal skeleton or spinal cord 5 They can be classified in mammals, reptiles, fishes, birds and amphibians Invertebrates Vertebrates Vertebrates Vertebrates Invertebrates