Entomology — MCQs Biology – T4Tutorials .PK

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1. Entomology is the study of:
(A) Insects
(B) Fish
(C) Birds
(D) Mammals

2. Insects belong to phylum:
(A) Chordata
(B) Mollusca
(C) Annelida
(D) Arthropoda

3. Insects have:
(A) Three pairs of legs
(B) Four pairs of legs
(C) Many legs
(D) No legs

4. The body of an insect is divided into:
(A) Thorax, abdomen only
(B) Head, thorax only
(C) Head, thorax, abdomen
(D) Head, abdomen only

5. Antennae of insects are used for:
(A) Locomotion
(B) Sensing the environment
(C) Digestion
(D) Reproduction

6. Compound eyes in insects are used for:
(A) Vision
(B) Hearing
(C) Smell
(D) Taste

7. Insects breathe through:
(A) Gills
(B) Lungs
(C) Tracheal system
(D) Skin

8. Insects have:
(A) Endoskeleton
(B) Exoskeleton made of chitin
(C) No skeleton
(D) Cartilage

9. Insects show:
(A) Budding
(B) No metamorphosis
(C) Metamorphosis
(D) Fragmentation

10. Complete metamorphosis includes:
(A) Egg, juvenile, adult
(B) Egg, nymph, adult
(C) Egg, larva, pupa, adult
(D) Only egg and adult

11. Incomplete metamorphosis includes:
(A) Only egg and adult
(B) Egg, larva, pupa, adult
(C) Egg, juvenile, adult
(D) Egg, nymph, adult

12. Butterflies undergo:
(A) Incomplete metamorphosis
(B) Complete metamorphosis
(C) No metamorphosis
(D) Budding

13. Grasshoppers undergo:
(A) Budding
(B) Complete metamorphosis
(C) Incomplete metamorphosis
(D) Fragmentation

14. Honeybees belong to order:
(A) Hymenoptera
(B) Lepidoptera
(C) Diptera
(D) Coleoptera

15. Butterflies belong to order:
(A) Lepidoptera
(B) Coleoptera
(C) Diptera
(D) Hymenoptera

16. Flies belong to order:
(A) Lepidoptera
(B) Coleoptera
(C) Diptera
(D) Hymenoptera

17. Beetles belong to order:
(A) Lepidoptera
(B) Diptera
(C) Coleoptera
(D) Hymenoptera

18. Dragonflies belong to order:
(A) Odonata
(B) Orthoptera
(C) Hemiptera
(D) Coleoptera

19. Grasshoppers belong to order:
(A) Diptera
(B) Hemiptera
(C) Lepidoptera
(D) Orthoptera

20. True bugs belong to order:
(A) Coleoptera
(B) Hemiptera
(C) Lepidoptera
(D) Diptera

21. Ants and wasps are:
(A) Solitary insects only
(B) Social insects
(C) Aquatic insects
(D) Predatory insects only

22. Termites are:
(A) Aquatic insects
(B) Solitary insects only
(C) Predatory insects
(D) Social insects

23. Insects play a role in:
(A) Only decomposition
(B) Only predation
(C) Only parasitism
(D) Pollination

24. Honeybees produce:
(A) Silk
(B) Honey and wax
(C) Poison only
(D) Nectar only

25. Silkworms produce:
(A) Honey
(B) Silk
(C) Wax
(D) Poison

26. Insects help in:
(A) Only parasitism
(B) Only pollination
(C) Decomposition and nutrient cycling
(D) Only predation

27. Insect vectors transmit:
(A) Only silk
(B) Only nutrients
(C) Only pollen
(D) Diseases

28. Mosquitoes transmit:
(A) Cholera
(B) Typhoid
(C) Malaria and dengue
(D) Tuberculosis

29. Tsetse flies transmit:
(A) Cholera
(B) Malaria
(C) Dengue
(D) Trypanosomiasis

30. Insects have:
(A) Open circulatory system
(B) Closed circulatory system
(C) No circulation
(D) Only gills

31. Insects sense vibrations using:
(A) Antennae only
(B) Tympanal organs
(C) Legs only
(D) Eyes only

32. Insects reproduce by:
(A) Budding
(B) Asexual reproduction only
(C) Sexual reproduction
(D) Fragmentation

33. Some insects show:
(A) Fragmentation only
(B) Budding only
(C) Parthenogenesis
(D) Spore formation

34. Insect metamorphosis is controlled by:
(A) Only environmental factors
(B) Hormones like ecdysone
(C) Only genes
(D) Only diet

35. Insects are:
(A) Endothermic only
(B) Warm-blooded
(C) Cold-blooded (ectothermic)
(D) Amphibious

36. Insects communicate using:
(A) Only sounds
(B) Pheromones, sounds, and visual signals
(C) Only touch
(D) Only chemical signals

37. Ants communicate mainly by:
(A) Sound
(B) Pheromones
(C) Touch only
(D) Visual cues only

38. Fireflies produce light by:
(A) Chemiluminescence
(B) Bioluminescence
(C) Photosynthesis
(D) Reflection

39. Insects have:
(A) Malpighian tubules for excretion
(B) Kidneys
(C) Gills only
(D) Nephridia only

40. Insects show:
(A) Segmental body organization
(B) No segmentation
(C) Only head and thorax
(D) Random structure

41. Wings of insects are attached to:
(A) Legs
(B) Head
(C) Abdomen
(D) Thorax

42. Beetles have:
(A) Scales only
(B) Membranous forewings
(C) No wings
(D) Hardened forewings (elytra)

43. Dragonflies are:
(A) Herbivorous only
(B) Predatory insects
(C) Nectar feeders only
(D) Detritivores only

44. Aphids are:
(A) Nectar feeders only
(B) Predatory insects
(C) Pollinators only
(D) Sap-sucking insects

45. Locusts are:
(A) Sap-sucking
(B) Predatory only
(C) Herbivorous and migratory
(D) Pollinators

46. Insects have:
(A) Bone
(B) Endoskeleton
(C) Cartilaginous skeleton
(D) Chitinous exoskeleton

47. Mosquito larvae breathe using:
(A) Skin
(B) Gills
(C) Lungs
(D) Siphon

48. Insect molting is controlled by:
(A) Ecdysone hormone
(B) Thyroxine
(C) Insulin only
(D) Adrenaline

49. Insects are classified based on:
(A) Only eyes
(B) Only wings
(C) Only legs
(D) Wings, mouthparts, and metamorphosis

50. Insecticides target:
(A) Pollinators
(B) Pests to protect crops and humans
(C) All animals
(D) Only soil microbes