Matching Pairs InvertebratesOnline version Learn more about invertebrates by Luz Álvarez Herrero 1 ANNELIDS 2 MOLLUSCS 3 JELLYFISH 4 ARTHROPODS 5 ECHINODERMS 6 SPONGES They are protected from predators by hard skin or spikes Examples: Starfish They stay on the seabed They have a long, soft body divided into segments. Example: Earthworm They have a soft muscular body Examples: snail and octopus They are the most common group on Earth. The biggest group are insects. Example: crab, ladybug Soft body called umbrella and long tentacles