Centipedes are what makes up the largest of all animal phyla and includes invertebrates with jointed legs and separated body parts.
Worms make up the largest group of complex invertebrates.
The giant squid.
insects
yes
All insects, spiders, scorpions and crabs are arthropods, meaning that they are all within the phylum arthropoda.
pacific tree frog
all arthropods have the following characteristics :-1. A hard outer body covering called an exoskeleton.2. Specialized mouth parts3. Jointed legs4. Compound Eyes5. Segmented body
Yes insects can be said to form the largest group of invertebrates with about a million species described and possibly several millions yet to be described. Of these, about 400,000 are the coleoptera (beetles).
Cnidarians are the most diverse group.
The largest group of invertebrates is the arthropods, including: the crustaceans (crabs etc) the arachnids (spiders etc) the insects the myriapods (centicipedes etc).
Millipedes AND insects both fall under the phylum Arthropoda. Arthropods are characterized by jointed feet, exoskeletons, open circulatory systems, and, usually, compound eyes.
Gastropods is far wrong. The "group" or "class" of the Phylum Molluska with the largest and fastest species are the Cephalopods. Largest being the giant squid, Fastest prob a tie between squid and octopus.