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Apologia Biology
Module 12: Phylum Arthropoda
Question | Answer |
---|---|
Exoskeleton | A body covering, typically made of chitin, that provides support and protection |
Molt | To shed an old outer covering so 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 out of the blood vessels and into the 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 |