Questions About Insects (Animal Kingdom)
Multiple-Choice Questions on Insects (Animal Kingdom)
1. What class do insects belong to in the animal kingdom?
A) Amphibia
B) Reptilia
C) Insecta
D) Arthropoda
E) Mollusca
2. How many legs do insects typically have?
A) 4
B) 6
C) 8
D) 10
E) 12
3. Which of the following is not a characteristic of insects?
A) Exoskeleton
B) Three body parts
C) Wings
D) Gills
E) Compound eyes
4. The three main body parts of an insect are:
A) Head, neck, abdomen
B) Thorax, abdomen, tail
C) Head, thorax, abdomen
D) Head, chest, tail
E) Antennae, thorax, abdomen
5. What part of the insect's body are the wings attached to?
A) Head
B) Thorax
C) Abdomen
D) Legs
E) Antennae
6. Which of the following insects undergo complete metamorphosis?
A) Grasshopper
B) Butterfly
C) Cockroach
D) Lice
E) Termite
7. Which structure is used by insects to sense their environment?
A) Mandibles
B) Antennae
C) Wings
D) Ovipositor
E) Spiracles
8. What is the name of the respiratory openings on the body of an insect?
A) Bronchi
B) Spiracles
C) Gills
D) Trachea
E) Pores
9. Which of these is not an insect?
A) Butterfly
B) Spider
C) Beetle
D) Ant
E) Wasp
10. What kind of symmetry do insects have?
A) Radial
B) Bilateral
C) Asymmetrical
D) Spherical
E) Circular
11. Which of the following insects is considered a pollinator?
A) Mosquito
B) Fly
C) Honeybee
D) Termite
E) Antlion
12. What type of skeleton do insects possess?
A) Endoskeleton
B) Cartilaginous skeleton
C) Hydrostatic skeleton
D) Exoskeleton
E) Bony skeleton
13. Insects are grouped under which larger phylum?
A) Annelida
B) Mollusca
C) Arthropoda
D) Echinodermata
E) Cnidaria
14. Which order of insects includes butterflies and moths?
A) Diptera
B) Hymenoptera
C) Lepidoptera
D) Orthoptera
E) Coleoptera
15. What is the function of compound eyes in insects?
A) Chewing food
B) Detecting sound
C) Flight control
D) Seeing in multiple directions
E) Regulating temperature
16. Which of the following insects belongs to the order Orthoptera?
A) Housefly
B) Beetle
C) Mosquito
D) Grasshopper
E) Bee
17. What is the primary role of pheromones in insects?
A) Defense
B) Breathing
C) Communication
D) Digestion
E) Photosynthesis
18. What type of metamorphosis does a grasshopper undergo?
A) Complete metamorphosis
B) No metamorphosis
C) Gradual (incomplete) metamorphosis
D) Mixed metamorphosis
E) Instant development
19. The hard outer covering of insects is made of:
A) Collagen
B) Keratin
C) Cellulose
D) Chitin
E) Lignin
20. What role do detritivorous insects play in ecosystems?
A) Pollination
B) Seed dispersal
C) Decomposition of organic matter
D) Predation
E) Parasitism
Answers with Explanations
1. C) Insecta
Insects are classified under the class Insecta.
2. B) 6
All insects have three pairs of legs, totaling six.
3. D) Gills
Insects do not have gills; they breathe through spiracles and tracheae.
4. C) Head, thorax, abdomen
These are the three main body segments of insects.
5. B) Thorax
Wings and legs are attached to the thorax.
6. B) Butterfly
Butterflies undergo complete metamorphosis: egg → larva → pupa → adult.
7. B) Antennae
Antennae are used for detecting smells and environmental cues.
8. B) Spiracles
Spiracles are openings through which insects breathe.
9. B) Spider
Spiders are arachnids, not insects (they have 8 legs and 2 body segments).
10. B) Bilateral
Insects exhibit bilateral symmetry.
11. C) Honeybee
Honeybees are important pollinators for many plants.
12. D) Exoskeleton
Insects have an exoskeleton made of chitin.
13. C) Arthropoda
Insects belong to the phylum Arthropoda.
14. C) Lepidoptera
Butterflies and moths are in the order Lepidoptera.
15. D) Seeing in multiple directions
Compound eyes allow insects to detect motion and see in many directions.
16. D) Grasshopper
Grasshoppers are in the order Orthoptera.
17. C) Communication
Pheromones are chemicals insects use to communicate, often in mating or territory marking.
18. C) Gradual (incomplete) metamorphosis
Grasshoppers develop through egg → nymph → adult without a pupal stage.
19. D) Chitin
Chitin is a strong, flexible material that makes up the exoskeleton.
20. C) Decomposition of organic matter
Detritivorous insects help recycle nutrients by breaking down dead material.
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