Multiple
Choice Questions (MCQs) on HEMICHORDATES
1. What are the three distinct regions of a
hemichordate's body?
A) Head, thorax, abdomen
B) Proboscis, collar, trunk
C) Antennae,
thorax, abdomen
D) Head,
neck, tail
2. What is the function of the proboscis in
hemichordates?
A)
Reproduction
B) Burrowing
and locomotion
C)
Respiration
D) Feeding
3. In which habitat are hemichordates primarily
found?
A)
Freshwater lakes
B) Marine
environments
C)
Terrestrial forests
D) Desert
sands
4. How do hemichordates feed when they use
suspension feeding?
A) By using
their teeth to grind food
B) By
filtering plankton and small particles using gill slits
C) By
capturing insects
D) By
absorbing nutrients through their skin
5. Which type of larval stage is found in
hemichordates?
A) Planula
larva
B)
Trochophore larva
C) Tornaria
larva
D) Nauplius
larva
6. What is the primary method of reproduction in
most hemichordates?
A) Budding
B) Internal
fertilization
C) External
fertilization
D) Binary
fission
7. Which evolutionary feature of hemichordates
suggests a link to chordates?
A) Presence
of tentacles
B) Dorsal
nerve cord
C) Segmented
body
D)
Exoskeleton
8. Hemichordates share a larval form similar to
which other group of organisms?
A)
Arthropods
B) Mollusks
C)
Echinoderms
D) Annelids
9. What is a significant ecological role of
hemichordates in their marine habitats?
A) Predators
of small fish
B) Primary
producers
C) Deposit
feeders and suspension feeders
D) Parasites
of larger marine animals
10. How do hemichordates reproduce asexually?
A) By
budding off new individuals
B) Through
fragmentation
C) By binary
fission
D) By
producing spores
Correct
Answers
1. B) Proboscis, collar, trunk
2. B) Burrowing and locomotion
3. B) Marine environments
4. B) By filtering plankton and small particles
using gill slits
5. C) Tornaria larva
6. C) External fertilization
7. B) Dorsal nerve cord
8. C) Echinoderms
9. C) Deposit feeders and suspension feeders
10. B) Through fragmentation
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