NEET : Multiple Choice questions: Phylum Echinodermata

1. Term Echinodermata has been given due to presence of 
A. Exoskeleton of chitin
B. Endoskeleton of calcareous shell
C. Exoskeleton of calcareous ossicle
D. Endoskeleton of calcareous ossicles

Answer : D Explanation 

2. Which of the following statement is correct for the Echinoderms.

A. Some of the animals are fresh water.

B. Both adult and their larva are radial symmetrical.
C. Most of the animals have spiny body.
D. They have organ level of organisation.

Answer: C Explanation 

3. In Echinoderms:

A. Digestive system is incomplete and mouth only is present on ventral surface of body.

B.Digestive system is incomplete and anus only is present on dorsal surface of body.

C. Digestive system is complete and mouth  is present on ventral surface and anus is present on dorsal surface.

D. Digestive system is complete and and mouth  is present on dorsal surface and anus is present on ventral surface.

Answer : C Explanation

4. Most remarkable feature of Echinoderms is 

A. Water vascular system 

B. Canal system

C. Tracheal system

D.All of the above.

Answer: A  Explanation

5. Consider the following functions of water vascular system and select the correct code:

1. Excretion

2. Respiration 

3.Caturing of food 

4. Transportation of food

A. 1, 2 and 3

B. 2, 3 and 4

C. 1 ,3 and 4

D. 1 ,2 and 4

Answer : B Explanation

6. In Echinoderms:

A. Both larva and adult are radial symmetrical.

B. Both larva and adult are Bilateral symmetrical.

C. Larva is bilateral symmetrical and adult ar is radial symmetrical

D. Adult is bilateral symmetrical and larva is radial symmetrical

Answer : C Explanation

 

7. Which one the following is Excretory organ in Echinodermata.

A. Protonephridia 

B. Pro nephros kidney

C. Proboscis glands 

D. Excretory system is absent

Answer : D Explanation

8. Which of the following pair  is incorrect for the Echinoderms.

A. Reproduction: sexual

B. Development : direct

C. Saxes : seprate

D. Fertilization: External

Answer : B Explanation

9. In the Echinoderms, Development is 

A. Direct with free swimming larval stage 

B. Direct with sessile larval stage

C. Direct and  larval resemble with the adult.

D. Indirect with no larval stage

Answer: A   Explanation

10. Sea lily is 

A. Antedon       B. Asterias

C.Echinus         D. Ophiura

Answer : A Explanation

12. Match the list

A. Asterias      1.Star. Fish 

B. Cucumaria  2.Brittle star

C. Ophiura      3. Sea urchin

D. Echinus      4. Sea                                       Cucumber 

     A      B       C      D

A.  1       2       3       4

B.  1       4       2       3

C.  4      3       2        1

D.  4      2       3        1

Answer : B Explanation