PCA Exam: Insects, Mites, and Invertebrates Exam Questions and Answers 100% Pass

Chewing Mouthpart - ANSWER-includes the labrum, mandibles, hypopharynx, and the labrum-epipharynx piercing-sucking mouthparts - ANSWER-insect mouthparts in which a syringe-like structure pierces plant cells and draws in its contents Blood Feeding Mouthparts - ANSWER-An elongated labium forms a protective sheath for the stylet that carries enzymes that when the insect carries blood up it does not clot rasping-sucking mouthparts - ANSWER-Scrape the surface of the leaf away and then feed on the sap using a cone shaped beak Siphoning mouthparts - ANSWER-Feeding tube is uncoiled and extended to suck liquids into the mouth (butterfly) Sponging mouthparts - ANSWER-The mandibles and maxillae are nonfunctional, and the remaining parts form a proboscis with a fan-shaped sponge at the tip, liquid food is mopped up by the capillary action Chewing-lapping mouthparts - ANSWER-Modified mouthparts that occur in bees. Includes a "tongue" that laps up liquids, as well as mandibles that can be used for various functions. What orders of insects have chewing mouthparts - ANSWER-Collembola, coleptera, dermaptera, dictyoptera, diptera, ephemeroptera, hymenoptera, isoptera, lepidoptera, mecoptera, neurtopera, odonata, orthoptera, plecoptera, psocoptera, thysanura what insect orders have piercing-sucking mouthparts - ANSWER-hemiptera, diptera, siphonaptera How are piercing-sucking mouthparts different than chewing mouthparts - ANSWER-they have a modified labrum that acts as a pouch for protecting the maxillary stylets and mandibles/maxillae that are sharpened like a needle