Phylum-Echinodermata-mcqs

Phylum Echinodermata – Multiple Choice Questions (MCQs)

Phylum Echinodermata- The spiny skinned animals

Dive into the world of sea creatures known as Phylum Echinodermata with our fun quiz! Learn interesting facts about these marine animals through simple Multiple Choice Questions (MCQs). Let’s explore together and see how much you know about the unique features and behaviors of Echinoderms.

Ready for a sea adventure? Let’s get started!

Multiple Choice Questions (MCQs)

1. What does the term echinoderms mean
A. Tube feet
B. Star shaped
C. Spiny skin
D. Stomach foot

Answer: C

2. The terrestrial species of Echinodermata is
A. Brittle star
B. Starfish
C. Sea lily
D. None of these

Answer: D

3. The echinoderms are related to chordates by their similarity in the development of
A. Gut
B. Nervous system
C. Heart
D. Coelom

Answer: D

4. Seastar has a brain
A. Yes
B. No

Answer: B

5. Lost parts can be regenerated in Echinoderms
A. Yes
B. No

Answer: A

6. There are exclusively ……… animals.
A. Marine
B. Freshwater
C. Terrestrial
D. All of these

Answer: A

7. Characteristics feature of Echinodermata is.
A. They are triploblastic
B. They have a true coelom
C. Fertilization is external
D. All of these

Answer: D

8. Example of Echinoderms is
A. Planaria
B. Flatworm
C. Sea cucumber
D. All of these

Answer: C

9. Tube feet is a locomotory organ in Echinoderms
A. Yes
B. No

Answer: A

10. Echinoderms are triploblastic.
A. Yes
B. No

Answer: A

11. Taxonomists have divided echinoderms into classes;
A. 3
B. 4
C. 5
D. 6

ANSWER: C

12. Scientist believed that echinoderms evolved from;
A. Asymmetrical ancestors
B. Bilaterally symmetrical ancestors
C. Radially symmetrical ancestors
D. Symmetrical ancestors

ANSWER: B

13. Echinoderms are from which period;
A. Cambrian period
B. Cretaceous period
C. Palaeozoic period
D. Cenozoic period

ANSWER: A

14. Class Asteroidea involves sea stars;
A. YES
B. NO

ANSWER: A

15. “Ophiuroidea” is the class of phylum Chordata;
A. YES
B. NO

ANSWER: B

16. Animals present in class Asteroidea have arms;
A. 2
B. 4
C. 5
D. 6

ANSWER: C

17. Sea stars are believed to share a common evolutionary history with phylum;
A. Annelida
B. Arthropoda
C. Echinodermata
D. Chordata

ANSWER: D

18. In sea stars, Madreporite is the opening for;
A. Digestive system
B. Water vascular system
C. Excretory system
D. Circulatory system

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ANSWER: B

19. Madreporite are present on the aboral surface in the sea star;
A. YES
B. NO

ANSWER: A

20. Class Asteroidea involves animals that are Rodlike
A. YES
B. NO

ANSWER: B

21. Ampulla contract and force fluid into
A. Suckers
B. Podia
C. Radial canal
D. Stone canal

ANSWER: B

22: Which structures at the tip of the podia come into contact with the substrate.
A. Suckers
B. Ampulla
C. Rectal caeca
D. All of these

ANSWER: A

23: Podia contract by forcing water back into
A. Ostia
B. Suckers
C. Ampulla
D. None of these

ANSWER: C

24: When the podia contracts, the body is pulled forward.
A. Yes
B. No

ANSWER: A

25: In echinoderms, the mouth leads into 2 parts stomach.
A. No
B. Yes

ANSWER: B

26: Echinoderms prey on
A. Oysters
B. Clams
C. Seafood
D. All of these

ANSWER: D

27: Short intestine extends from the pyloric stomach to
A. Urinary bladder
B. Anus
C. Urethra
D. Ureter

ANSWER: B

28: Starfish eats bivalves such as
A. Clams
B. Oysters
C. Mussels
D. All of these

ANSWER: D

29: Small fish is the food of starfish.
A. Yes
B. No

ANSWER: A

30: Starfish pry the shell open with arms.
A. No
B. True

ANSWER: B

31. Asexual reproduction in sea stars takes place by:
A. Binary fission
B. Regeneration
C. Budding
D. Parthenogenesis

Answer: B

32. The endoskeleton in echinoderms is made up of:
A. Calcareous plates
B. Mucous plates
C. Proteinaceous plates
D. none of these

Answer: A

33. Skin gills in starfish play role in:
A. locomotion
B. thermoregulation
C. osmoregulation
D. gas exchange and excretion

Answer: D

34. Sea stars can grow from a small fragment such as one arm, as long as at least ¼ of the central disc is present:
A. yes
B. No

Answer: A

35. Sea stars are hermaphrodite:
A. Yes
B. No

Answer: B

36. Pedicellaria are modified:
A. tube feet
B. integumentary structures
C. spines
D. some other structures
Answer: C

37. Main difference between starfishes and a brittle star is:
A. number of arms
B. structure of the ambulacral groove
C. tube feet
D. pedicellaria

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Answer: B

38. The mode of nutrition in ophiuroids is:
A. predators only
B. scavengers only
C. decomposers
D. predators and scavengers

Answer: D

39. The projections between spines and plates are called papulae.
A. yes
B. no

Answer: A

40. Ophiuroidea traps food with calcareous plates between their spines
A. yes
B. no

Answer: B

41. Which class of Echinoderm lack Arms.
A. Asteroidea
B. Ophiuroidea
C. Echinoidea
D. Crinoidea

Answer: C

42. Body surface is usually covered with moveable spines.
A. Crinoidea
B. Asteroidea
C. Ophiuroidea
D. Echinoidea

Answer: D

43. The examples of Echinoidea are.
A. Sea urchins
B. Sand Dollars
C. Sea Biscuits
D. All of these

Answer: D

44. Seastar is the example of Echinoidea.
A. YES
B. NO

Answer: B

45.Sea urchin has a spherical shape body.
A. YES
B. NO

Answer: A

46. Chewing apparatus called Aristotle’s lantern present in.
A. Sand Dollars
B. Sea urchin
C. Sea Biscuit
D. Seastar

Answer: B

47.Use tube to filter food out of the water.
A. Sea Biscuit
B. Seastar
C. Sand Dollars
D. Sea urchin

Answer: C

48. Which class of Echinoderm is most primitive.
A. Crinoidea
B. Echinoidea
C. Asteroidea
D. Ophiuroidea

Answer: A

49. Lilly like the class of Echinoderm is class Crinoidea.
A. Yes
B. No

Answer: A

50. Asteroidea is a hedgehog-like class.
A. Yes
B. No

Answer: B

51. Most primitive form of echinoderms is:
A) Holothuroidea
B) Crinoidea
C) Ambulacral
D) None

ANSWER: A

52. Oral surface of Crinoidea is:
A. Upward
B. Downward
C. Forward
D. None

ANSWER: A

53. Along the length of the arms are branches called:
A. Grooves
B. Podia
C. Pinnules
D. Crown

ANSWER: C

54. Aboral surface of Crinoidea attached to the substrate by means of the bendable stalk:
A. True
B. False

ANSWER: A

55. Class Holothuroidea have excess arms:
A. True
B. False

ANSWER: B

56. Muscular cloaca of Holothuroidea is used for:
A. Respiration
B. Excretion
C. Gas exchange
D. All

ANSWER: C

57. The largest known sea star weighted is about:
A. 12 pounds
B. 10 pounds
C. 11 pounds
D. 8 pounds

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ANSWER: C

58. Female sea star can lay eggs at a time:
A. 10 million
B. 12 million
C. 1000 million
D. 100 million

ANSWER: D

59. Sea Cucumber has no arms:
A. Yes
B. No

ANSWER: A

60. The process of regeneration occurs in Sea Cucumber:
A) Yes
B) No

ANSWER: A