Biology Module 12 (Study Guide Terms)

Exoskeleton
A body covering, typically made of chitin, that provides support and protection
Molt
To shed an old outer covering to that it can be replaced with a new one
Thorax
The body region between the head and the abdomen
Abdomen
The body region posterior to the thorax
Cephalothorax
A body region composed of the head and thorax fused together
Compound eye
An eye made of many lenses, each with a very limited scope
Simple eye
An eye with only one lens
Open circulatory system
A circulatory system that allows the blood to flow our of the blood vessels and into various body cavities so that the cells are in direct contact with the blood
Statocyst
The organ of balance in a crustacean
Gonad
A general term for the organ that produces gametes
Complete metamorphosis
Insect development consisting of four stages: egg, larva, pupa, and adult
Incomplete metamorphosis
Insect development consisting of three stages: egg, nymph, and adult