MCQs Entomology-21 Posted on August 5, 2025August 30, 2025Author agropublishers 0 1. Why are elytra considered important adaptations in certain insect orders? They are used for flight only They aid in sensory perception They protect the hindwings and abdomen They function as compound eyes 2. _________ is the elongated mouthpart in mosquitoes that acts as a sheath for the piercing stylets and facilitates blood-sucking Maxillae Mandibles Hypopharynx Labium 3. Which insect order is characterized by siphoning-type mouthparts, commonly referred to as a proboscis? Hymenoptera Coleoptera Lepidoptera Diptera 4. The primary function of antennae in insects is _________ Feeding Respiration Locomotion Sensory perception 5. The type of development involving no distinct metamorphosis is called _________ Ametabolous Holometabolous Hemimetabolous 6. The chemoreceptors on the insect antennae are known as_______________ Trichoid sensilla Basiconic sensilla Tympanal sensilla Campaniform sensilla 7. Which insect appendages are primarily involved in the formation of the ovipositor? Claspers Mandibles Antennae Gonapophyses 8. In bees, which mouthpart primarily forms the lapping structure used for feeding on nectar? Glossa of labium Maxillae Mandibles Labrum 9. What is the primary function of arolium in insect legs? Jumping Clinging to smooth surfaces Digging Sensing humidity 10. Which insect appendage shows the greatest structural diversity across different orders? Antennae Legs Mouthparts Wings Loading … Question 1 of 10