A All arthropods have appendages^and an ----- skeleton. ^A) Exo B) Endo ^ ^B The growth of an animal with ^an exoskeleton can only occur ^by --------. ^A) Uropods B) Molting ^A The hard substance that forms ^the external skeleton of ^arthropods is called ^A) Chitin B) Telson ^A Many arthropods have complex ^eyes that detect ^A) Movement B) Heat ^ ^A The female gypsy moth secretes^-----, which the male detects ^with its antennae. ^A) Pheromones B) Pupa ^B The ----- of the insect holds ^food between the jaws of an ^insect. ^A) Labrum B) Labium ^A Respiration in the grasshopper^occurs through air tubes or ^------. ^A) Tracheae B) Spiracles ^A Female insects may have ----- ^that they use to dig holes and^deposit eggs. ^A) Ovipositors B) Pedipalps ^A Insects are a successful group^because of the ways they have ^adapted to life. ^A) True B) False ^A The series of stages that ^moths go through from egg to ^adult is called ---------. ^A) Metamorphosis B) Chrysalis ^
