Hi agriculturists, welcome to the daily MCQ Questions On Insects Morphology & Classification. Read all the questions very carefully before attempting. Today’s test series consists of 50 questions based on the previous year’s questions of the Licensure Examination of Agriculturists. Hence, attempting these questions will help you improve your skills for the upcoming examination.

In this test series, we have focused on insects morphology and classification. With the help of this test series you will be able to test your soil science knowledge and prepare well for the upcoming examinations.

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Daily MCQ Questions On Insects Morphology & Classification

MCQ Questions On Insects Morphology & Classification

1. Which class of the Phylum Arthropoda does the scorpion belong to?

  • Arachnida
  • Crustacea
  • Chilopoda
  • Diplopoda

2. What type of symmetry is characteristic of the Phylum Arthropoda?

  • Radial symmetry
  • Bilateral symmetry
  • Asymmetry
  • Pentaradial symmetry

3. Which feature is common to all Arthropods?

  • Segmented body
  • Cartilaginous skeleton
  • Notochord
  • Spiny skin

4. In the classification of insects, which class do they belong to?

  • Hexapoda
  • Crustacea
  • Arachnida
  • Chilopoda

5. Which body regions are distinct in insects?

  • Head, thorax, abdomen
  • Cephalothorax and abdomen
  • Pro, meso, metasoma
  • Head and trunk

6. What is the primary respiratory organ in insects?

  • Lungs
  • Gills
  • Tracheae
  • Skin

7. Which arthropod class includes millipedes?

  • Chilopoda
  • Arachnida
  • Diplopoda
  • Hexapoda

8. What is the main characteristic of the Crustacea class?

  • Presence of wings
  • Aquatic habitat
  • Segmented appendages
  • Chitinous exoskeleton

9. What type of body fluid is found in Arthropods?

  • Blood
  • Haemolymph
  • Lymph
  • पानी

10. Which class of Arthropoda has organisms with two pairs of antennae?

  • Insecta
  • Arachnida
  • Crustacea
  • Diplopoda

11. Which class in the Phylum Arthropoda includes centipedes?

  • Crustacea
  • Diplopoda
  • Chilopoda
  • Hexapoda

12. What type of visual organs do insects have?

  • Simple eyes
  • Compound eyes
  • Both simple and compound eyes
  • No eyes

13. What type of muscles are found in Arthropods?

  • Smooth muscles
  • Striated muscles
  • Cardiac muscles
  • Circular muscles

14. Which developmental process is absent in scorpions?

  • Anamorphosis
  • Metamorphosis
  • Regeneration
  • Moulting

15. Insects primarily respire through which structure?

  • Gills
  • Lungs
  • Tracheae
  • Skin

16. What is the characteristic feature of the exoskeleton of Arthropods?

  • Made of calcium carbonate
  • Made of chitin
  • Made of cellulose
  • Made of keratin

17. Which of the following insects undergoes complete metamorphosis?

  • Grasshopper
  • Butterfly
  • Cockroach
  • Termite

18. What is the main function of malpighian tubules in insects?

  • Respiration
  • Digestion
  • Excretion
  • Reproduction

19. Which of the following is a characteristic feature of Myriapods?

  • Single pair of antennae
  • Compound eyes
  • Multiple legs
  • Wings

20. Which hormone is responsible for moulting in insects?

  • Insulin
  • Ecdysone
  • Adrenaline
  • Thyroxine

21. What is the primary role of hemocytes in arthropods?

  • Transport oxygen
  • Defense mechanism
  • Digestive function
  • Sensory function

22. In which habitat are crustaceans primarily found?

  • Terrestrial
  • Freshwater
  • Marine
  • Aerial

23. Which type of circulatory system is present in Arthropods?

  • Closed
  • Open
  • Double
  • Single

24. What is the role of the tympanal organ in insects?

  • Vision
  • Hearing
  • Smell
  • Taste

25. Which substance is primarily responsible for the hardening of the insect cuticle?

  • Chitin
  • Keratin
  • Silica
  • Calcium carbonate

26. Which structure is involved in the excretion of nitrogenous waste in insects?

  • Nephridia
  • Kidneys
  • Malpighian tubules
  • Flame cells

27. What is the function of the pedipalps in arachnids?

  • Locomotion
  • Sensory and feeding
  • Respiration
  • Reproduction

28. In insects, what is the role of the crop?

  • Grinding food
  • Temporary food storage
  • Absorption of nutrients
  • Digestion of food

29. What type of metamorphosis do butterflies undergo?

  • Ametabolous
  • Hemimetabolous
  • Paurometabolous
  • Holometabolous

30. Which of the following is an example of an arachnid?

  • Lobster
  • Spider
  • Centipede
  • Ant

31. Which part of the insect brain is responsible for processing visual information?

  • Protocerebrum
  • Deutocerebrum
  • Tritocerebrum
  • Subesophageal ganglion

32. What is the primary function of spiracles in insects?

  • Circulation
  • Respiration
  • Digestion
  • Excretion

33. Which of the following orders does the honeybee belong to?

  • Lepidoptera
  • Hymenoptera
  • Coleoptera
  • Diptera

34. What structure in insects aids in detecting chemical signals?

  • Ocelli
  • Antennae
  • Mandibles
  • Maxillae

35. What is the main characteristic of the order Coleoptera?

  • Scaly wings
  • Hardened forewings
  • Piercing mouthparts
  • Sucking mouthparts

36. Which arthropod is known for its regenerative abilities?

  • Starfish
  • Spider
  • Crayfish
  • Centipede

37. Which structure in insects is used for sound production?

  • Tympanum
  • Stridulatory organs
  • Antennae
  • Spiracles

38. What is the main characteristic of the order Diptera?

  • Two pairs of wings
  • Single pair of wings
  • No wings
  • Hardened forewings

39. Which insect order is characterized by having a “waist” between the thorax and abdomen?

  • Hemiptera
  • Hymenoptera
  • Coleoptera
  • Lepidoptera

40. What is the function of the exoskeleton in arthropods?

  • Protection and support
  • Digestion
  • Reproduction
  • Respiration

41. Which type of metamorphosis is characterized by a pupal stage?

  • Ametabolous
  • Hemimetabolous
  • Holometabolous
  • Paurometabolous

42. In which arthropod class are chelicerae found?

  • Insecta
  • Crustacea
  • Arachnida
  • Chilopoda

43. What is the primary function of the fat body in insects?

  • Energy storage and metabolism
  • Respiration
  • Digestion
  • Reproduction

44. Which insect is known for its role in biological control due to its predatory nature?

  • Honeybee
  • Ladybird beetle
  • Butterfly
  • Termite

45. What is the function of hemolymph in arthropods?

  • Transport oxygen and nutrients
  • Maintain body structure
  • Act as a waste disposal system
  • Aid in locomotion

46. Which structure in insects is responsible for detecting light intensity and direction?

  • Antennae
  • Compound eyes
  • Ocelli
  • Mandibles

47. What is the primary mode of reproduction in Arthropods?

  • Asexual
  • Sexual
  • Parthenogenesis
  • बडिंग

48. Which organ is involved in the sense of balance in crustaceans?

  • Statocyst
  • Tympanum
  • Antennal gland
  • Ommatidia

49. Which insect order includes species that are primarily aquatic during their nymph stage?

  • Lepidoptera
  • Odonata
  • Coleoptera
  • Hemiptera

50. Which of the following is a distinguishing feature of insects in the order Lepidoptera?

  • Presence of halteres
  • Hardened forewings
  • Scaly wings
  • Hemelytra

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