Arthropods

a headlice or mite  is an arachnid.

a cicada is an insect

a locus is an insect.

a crayfish is a crustacean.

1.Arthropods have have these cells  that form tissue and organ systems.
2.They can have different groups called arachnids, insects, crustacean, and myriapod.
3. These animals were the first land animals made in the world.
4. They have a exoskeleton that helps them from there organs.
5. Some have wings, legs, claws,and tails.