BIO 2135 Study Guide - Midterm Guide: Malpighian Tubule System, Appendage, Pupa

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Atelocerate-lost 2nd pair of antennae, mandibles not articulates, malpighian tubules, paired segmented tracheal system. Centipedes-lost compound eye, poison claw maxilliped, no wax on cuticle. Cuticle folds to strength-force of mandibles can distort head- tentorium. Hypopharynx-tongue divides mouth, top to push food in, bottom for salivary glands. Mosquito-labium curves up, other mouthparts inside, long mandible/maxilla-needles. Labrum folds- hollow food canal, pushed into capillary, diameter slightly larger than rbc. Honeybee-labium elongates, covered with hairs to wick nectar, labial palp and maxilla squeeze labium, extracts nectar. Butterly-lots all mouthparts except for maxilla-hollow, filled with hemolymph, uncoils. No saliva in honeybee and butterfly-nectar is already broken down. Pleural suture-line from leg to dome on top. 2 anterior and posterior nodal process-cuticle sticks out, pivot for wing, muscles pull up and down. Dorsoventral muscles create up stroke direct flight-muscle attached to wing to pull down.