Chapter 28: Arthropods and Echinoderms Flashcards
Structure, such as a leg or antenna, that extends from the body wall (715)
Appendage
External skeleton; tough, external covering that protects and supports the body of many invertebrates (pp. 715, 757)
Exoskeleton
Process in which an arthropod sheds its exoskeleton and manufactures a larger one to take its place (719)
Molting
Type of insect development characterized by a similar appearance throughout all stages of the life cycle (729)
Incomplete Metamorphosis
Type of insect development in which the larvae look and act nothing like their parents and also feed in completely different ways (729)
Complete Metamorphosis
Immature form that lacks functional sex organs and other adult structures (729)
Nymph
Stage of metamorphosis in which an insect changes from a larva into an adult (729)
Pupa
Specific chemical messenger that affects the behavior or development of other individuals of the same species (731)
Pheromone
Structural support located inside the body of an animal (pp. 734, 757)
Endoskeleton
System of internal tubes in Echinoderms that carries out essential functions such as feeding, respiration, circulation, and movement (735)
Water Vascular System