Relacionar Columnas Invertebrate GroupsVersión en línea Match the type of invertebrate with its description. por María Jesus Garcia 1 2 3 4 They don't have a backbone inside their bodies. They have a long, soft body. Caterpillars and earthworms are part of this group. They have a soft, muscular body. Octopuses and snails are part of this group. They have a segmented body with three body parts: head, thorax, and abdomen. Some have wings. Insects and spiders are both part of this group.