Compléter LIVING THINGS' CLASSIFICATIONVersion en ligne Complete the text about animals par Lauri Lala 1 arthropods vertebrates invertebrates fish spinal molluscs annelids reptiles coelenterates porifera amphibians birds five echinoderms mammals cord 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 .