Arthropods

A crab is part of the crustacean 

A butterfly is part of the insect

A millipede is part of the myriapod

1. Arthropods are broken up into 4 different parts.
2. All arthropods have exoskeletons.
3. Arthropods are more complex than segmented worms.
4. Arthropods have legs that bend at joints.
5. Arthropods have a body dived into sections.

A spider is part of the arachnid