Enter your Name:   Enter your E-mail Address:  1. Write out the definitions for the following terms: 01a. Exoskeleton 01b. Simple eye 01c. Open circulatory system 01d. Statocyst 01e. Gonad 02. Identify structures a-c in the following diagram: 02a. Structures A 02b. Structures B 02c. Structures C 03. Identify organs a - g in the following diagram: 03a. Organ A 03b. Organ B 03c. Organ C 03d. Organ D 03e. Organ E 03f. Organ F 03g. Organ G 04. Why do arthropods molt? 05. What five characteristics set arachnids apart from the other arthropods? 06. What four characteristics set insects apart from the other arthropods? 07. What are the four stages of complete metamorphosis? 08. What takes the place of a respiratory system in insects? 09. If an insect has horny wings that protect membranous wings, to what order does it belong? 10. If an insect has leather-like wings that protect membranous wings, to what order does it belong?