Composition made from protein and carbohydrate that is found in external skeletons of arthropods

Structures such as legs and antennae that extend from the body wall

Breathing tubes that extend throughout the body

The opening where air enters and leaves an arthropod.

Saclike organs that extract wastes from the blood, and then add them to feces, or digestive wastes, that move through the gut.  

The shedding of the entire exoskeleton

Body part of a crustacean that lies just behind the head and houses most of the internal organs

Posterior part of an arthropod's body.

Mouth part adapted for biting and grinding food.

Immature form that lacks functional sex organs and other adult structures

Stage of metamorphosis in which an insect changes from a larva into an adult

Specific chemical messenger that affects the behavior or development of other individuals of the same species.

Group of closely related animals of the same species that work together for the benefit of the group

Group of individual insects specialized to perform particular tasks, or roles