Insect Development Exoskeleton Mouthparts Reproduction Entomology Insect Development Cold blooded- development influenced by temperature Most insects inactive below 50 0 F; Breed, eat, develop faster the warmer it is up to 95 0 F. Insects in the world Most successful animals Make up 2 out of three living things With other arthropods make up over 75% of all animals Have been around for 350 million years Arthropods= Insects and their relatives Do not have a backbone(invertebrates) Jointed legged animals include; Ticks, mites,spiders,millipedes Centipedes, and insects Exoskeleton Why do insects look so strange? Exoskeleton Insect covered with hard outer shell Skin is very plastic like Difficult to sense environment Cast skin of cicada < notice slit along back Insect mouthparts-two types Chewing mouthparts Sucking mouthparts