Multiple Choice Questions (MCQs) – Phylum Annelida
- 1. Segmented body is presented in.
A. Annelids
B. Porifera
C. Mollusca
D. Coelenterate
Answer: A
- 2. The body of annelids is divided into.
A. Two regions
B. Three regions
C. Four regions
D. None of these
Answer: B
- 3. Longitudinal and circular muscles are found in the body wall of.
A. Sponges
B. Cnidarians
C. Annelids
D. None of these
Answer: C
- 4. Cuticle is a protective layer that resist abrasion and help prevent desiccation.
A. YES
B. NO
Answer: A
- 5. Class Polychaeta animals body possess appendages called parapodia.
A. YES
B. NO
Answer: A
- 6. The excretory organ of annelids are.
A. Flame cells
B. Nephrostomes
C. Nephridia
D. None of these
Answer: C
- 7. Beard worms live deep in oceans typically near.
A. Hydrothermal vent
B. Deep sea vent
C. None of these
D. All of these
Answer: A
- 8. Fire worms feed on corals and barnacles.
A. YES
B. NO
Answer: A
- 9. Shaggy tube worms camouflage for tube.
A. YES
B. NO
Answer: A
- 10. Bloodworms capture prey with extremely long eversible.
A. Pharynx
B. Larynx
C. Cirri
D. None of these
Answer: A
- 11. In Annelida, dorsal and ventral blood vessels are connected by
A. Heart
B. Capillary beds
C. Capillaries
D. Muscle
Answer: B
- 12. Gas exchange occurs across
A. Body wall
B. Appendages
C. Gills
D. All of these
Answer: D
- 13. In excretory system of Annelida, segmented nephridia is
A. Single
B. Paired
C. Many
D. None of these
Answer: B
- 14. The advantage of segmentation in Annelida is burrowing and muscle contraction.
A. Yes
B. No
Answer: A
- 15. In non-segmented Annelida, pressure is not transmitted throughout coelom.
A. True
B. False
Answer: B
- 16. Funnel and terminal cells project into
A. Coelomic fluid
B. Blood
C. Lymphatic fluid
D. Capillary tube
Answer: A
- 17. In Annelida, a highly coiled tubule is for
A. Secretion and absorption
B. Excretion
C. Transport
D. All of these
Answer: A
- 18. In Annelida, free swimming larva is produced called
A. Madreporite
B. Bipinnaria
C. Brachiolaria
D. Trochophore
Answer: D
- 19. The fertilization in Annelida is
A. External
B. Internal
Answer: A
- 20. In Annelida, blood is pumped by
A. Vessels
B. Muscle contraction
C. Both a and b
D. None of these
Answer: C
- 21. Which sensory organ of annelids is “useful to borrowers”
- A. Nuchal organ
B. Ocelli
C. Statocysts
D. None of these
ANSWER: C
22. Which of the following is the function of tubes in annelids.
- A. Protection
B. Hiding out
C. Digestion
D. Both A and B
ANSWER: D
23. Polychaeta means.
- A. Many chaetae
B. Segments
C. Appendages
D. Many cilia
ANSWER: A
24. Tubes in annelids are made up from fibrous proteins.
- A. Yes
B. No
ANSWER: A
25. Nuchal sensory organ is only unique to polychaetes.
- A. NO
B. YES
ANSWE: B
26. polychaeta possess appendages called,
- A. ocelli
B. Parapodia
C. Nephrostome
D. Antennae
Answer: B
27. Tubes in annelids are constructed from,
- A. Fibrous proteins
B. Foreign materials
C. Calcium carbonate
D. All of these
Answer: D
28. Parapodia in annelids possess a chaetal sac which secretes,
- A. Fluid
B. Bundle of chaetae
C. Ganglia
D. None of these
Answer: B
29. In annelids, parapodia is not a lateral outgrowth of body wall.
- A. Yes
B. No
Answer: B
30: chaetal structure is closely related to lifestyle and locomotion in annelids.
A. Yes
B. No
Answer: A
31. Impulses travel up to — faster than neurons of average diameter in annelids.
A. 20X
B. 40X
C. 60X
D. 25X
Answer: B
32. In annelids typical unicellular receptors distributed on
A. head, body
B. head, body and appendages
C. head and body and nerve
D. only appendages
Answer: B
33. Which part of digestive system secretes digestive enzymes in annelids?
A. Intestine
B. Esophageal ceca
C. Stomach
D. Pharynx
Answer: B
34. Tubes are coiled to increase surface area for secretion or absorption in annelids.
A. True
B. False
Answer: A
35. Hemal system lack in smaller varieties but possessed by larger animals in annelids family.
A. True
B. False
Answer: A
36. Nephridiopore opens to—- of animals.
A. dorsal
B. interior
C. exterior
D. ventral
Answer: C
37. Coelomic cavity may be lined with— containing chlorogogen cells.
A. prothelium
B. mesothelium
C. metathelium
D. both a and b
Answer: B
38. Following are the organs which are part of integrated system
A. digestive, hemal system
B. nervous system
C. digestive and nervous system
D. digestive, nervous, hemal and musculature system
Answer: D
39. Annelids are still restricted to dry environment.
A. True
B. False
Answer: B
40. In annelids gametes exit through nephridiopores.
A. False
B. True
Answer: B
41. In annelids gametes are released into
A. Coelom
B. Segment
C. Nephridiopore
D. Body wall
Answer: A
42.________ can grow entire worm from one segment
A. Chaetopterus
B. Amphitrite
C. Diopatara
D. Amphinome
Answer: A
43. Worms exhibit life phases:
A. one
B. Two
C. Three
D. Four
Answer: B
44. Epitoke is pelagic reproductive individual
A. No
B. Yes
Answer: B
45. Ripe gametes are shed by nephridiopores
A. Yes
B. No
Answer: A
46. Annelids that live and breed for many years are
A. Annuals
B. Biannual
C. Perennials
D. Multiannual
Answer: C
47. Trochophore larvae in the growth zone is anterior to
A. Atoke
B. Epitoke
C. Chaetae
D. Telotroch
Answer: D
48. Some annelids convert back into ____ after spawning.
A. Trochophore
B. Epitoke
C. Atoke
D. Swarm
Answer: C
49. Brood eggs are retained in tube
A. Yes
B. No
Answer: A
50. Epitokes arise from atokes via nephridiopores
A. Yes
B. No
Answer: B
51. Phylum Annelida means
A. Rings
B. Tubes
C. Both a and b
D. None of these
Answer: A
52. Annelida are
A. Mostly marine
B. Fresh water
C. Terrestrial
D. All of these
Answer: D
53. Annelida are segmented
A. Yes
B. No
Answer: A
54. In Annelida segmented are separated by septa
A. No
B. Yes
Answer: B
55. Scale worms has— rows of overlapping
A. 3
B. 4
C. 5
D. 2
Answer: D
56. Brain in Annelida is located
A. Dorsally in the prostomium
B. Ventrally in the prostomium
C. Both a and b
D. None of these
Answer: A
57. Bloodworms are ambush predators
A. No
B. Yes
Answer: B
58. Blood worms live in
A. Rivers
B. Lakes
C. Shallow sedimentary Burrows
D. Sea
Answer: C
59. Fire worms show resemblance with
A. Butterfly
B. Caterpillars
C. Bee
D. All of these
Answer: B