Phylum Echinodermata MCQs with Answers

Phylum Echinodermata MCQs

Hello students, our next topic for the MCQ is ‘PHYLUM ECHINODERMATA’. The term Echinodermata was coined by Jacob klein. Phylum Echinodermata includes Brittle stars, sea stars, sea cucumbers and sea urchins. The phylum Echinodermata animals have spiny skin. The water vascular system is derived from coelom. These are triploblastic and unsegmented animals.

The following MCQ will help you more to understand ‘Phylum Echinodermata’ topic.

 

MCQ.1):The body type of echinoderm organisms is ………………………

a)Bilaterally symmetrical

b) Is not symmetrical

c) Body is radially symmetrical

d) Asymmetrical body type

 

MCQ.2)……………………….……………… is the soft bumps present on the body of Echinodermata that absorbs oxygen from the water.

a) Dermal Branchiae

b) Tube feet

c) Sieve plate

d) Ampulla

 

MCQ. 3):In the water vascular system of sea star, water enters through ……………

a) Muscular feet

b) Radial canal

c) Madreporite

d) Ring canal

 

MCQ.4):Which of the following is muscular sac which controls tube feet by forcing water into it in the sea star?

a)Mandibles

b)Ampulla

c)Septa

d)Stone canal

 

MCQ.5):Which microscopic pigment spots on the sea stars which can detect light and dark?

a)Ocelli

b)Podia

c)Gonad

d)Cecum

 

MCQ.6):The more organisms which have 5 arms from a central disk and includes sea star or starfish belongs to class ………………………………

a) Class Ophiuroidea

b) Class Holothuroida

c) Class Echinoida

d) Class Asteroidea

 

MCQ.7):Organisms with rigid body like sand dollars do their locomotion with the help of …………………………

a) Tube foot

b) Suckers

c) Pincer

d) Spines

 

MCQ.8):The Echinoidea organism’s mouth has an intricate system of jaws and muscles which are known as ………………………………………………

a) Bourne latern

b) Gallelio’s latern

c) Johanson latern

d) Aristotle’s latern

MCQ.9):The branches that are along the length of arms of Sea lilies are called as ……………………………………………

a) Pinnules

b) Pedicellarie

c) Evisceration

d) All of these

MCQ.10):Which of the following part is a defensive organ and assumed to protect against encrusting organisms?

a) Retractor muscle

b) WVS

c) Pedicellarie

d) Hyponeural system

 

Answer

1) c) Body is radially symmetrical

2) a)Dermal Branchiae

3) c) Madreporite

4) b) Ampulla

5) a) Ocelli

6) d) Class Asteroidea

7) d) Spines

8) d) Aristotle’s latern

9) a) Pinnules

10) c) Pedicellarie


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