MCQs Entomology-30 Posted on November 29, 2025November 29, 2025Author agropublishers 0 MCQs Entomology-30 1. ———— are the organisms that are most active during the hours of darkness Nocturnal Crepuscular Nival Diurnal 2. In insects, imago refers to the ———– Adult stage Larval stage Pupal stage Immature stage 3. Neonicotinoids are a class of insecticides chemically similar to nicotine. How do they primarily affect insects? Blocking nerve signal transmission Damaging the insect’s exoskeleton Disrupting molting and development Inhibiting mitochondrial respiration 4. The metathorax is the thoracic region that ——– Bears forewings Has no appendages Bears hindwings Houses reproductive organs 5. Insects inhabiting rock surfaces are ——— Petricolous Pelophilous Muscicolous Psammophilous 6. A species dependent on a behavior or condition for survival is —— Opportunistic Parasitic Obligate Facultative 7. Which of the following insects possesses chewing-lapping type mouthparts adapted for processing both solid and liquid food? Mosquito Butterfly Housefly Honeybee 8. In insects, sclerotization is the process of softening the cuticle True False 9. Incomplete metamorphosis results in an intermediate stage called ——– Larva Pupa Nymph Chrysalis 10. In insects, the spermatheca is a sac in males used to store sperm False True Loading … Question 1 of 10