Completar frases LIVING THINGS' CLASSIFICATIONVersión en línea Complete the text about animals por Lauri Lala 1 invertebrates mammals vertebrates annelids echinoderms five fish porifera cord molluscs amphibians spinal coelenterates birds reptiles arthropods Animals can be classified into , if they have a spinal cord and , if they do not have a . There are groups of vertebrates animals : , , , and . Invertebrate animals are classified into six groups : , , , , , and .