MCQs Entomology-19 Posted on July 20, 2025August 30, 2025Author agropublishers 0 1. Which of these insect orders is exclusively herbivorous? Odonata Thysanoptera Trichoptera Phasmatodea 2. Pest outbreaks are most likely to occur under which of the following conditions? Natural enemies are imported from abroad Crops are planted in monoculture Farmers switch to new crops 3. As consumers become less tolerant of insect-damaged fruits, how are economic thresholds for fruit pests most likely to change? Decrease Remain unchanged Cannot be determined Increase 4. ______________ is the highest and most advanced form of social behavior in insects Communality Eusociality Subsociality Semisociality Quasisociality 5. The insect order Hemiptera includes which of the following groups? Crickets and grasshoppers Chewing and sucking lice Bed bugs and stink bugs Roaches and mantids 6. Insect pathogens primarily belong to which of the following groups? Viruses and bacteria Bacteria and protozoa Fungi and nematodes Protozoa and fungi 7. Chewing mouthparts are never found in which of the following insects? Beetles Bees Fleas Earwigs 8. __________ reflects the multiple feeding relationships among the organisms in an ecosystem Food Web Biotic Interactions None of these Food Chain 9. Which radiation source is most commonly used to sterilize insects in Sterile Insect Technique (SIT)? Gamma rays X-rays Infrared radiation UV light 10. What is the primary outcome when sterile males mate with wild females in the Sterile Insect Technique (SIT)? No viable offspring are produced Offspring inherit resistance to sterilization The females become permanently sterile The mating shortens the females’ lifespan Loading … Question 1 of 10
