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Echinoderms MCQs

Free 34+ Echinoderms MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Practise below with answers and explanations.

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Echinoderms — MCQs for Pakistan government job tests

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Echinoderms

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1.Nervous system of echinoderms consist of__________?

2.Sea stars are well known for their powers of__________?

3.Members of class__________ are commonly called sea cucumbers?

4.The primary role of hemal system in sea cucumbers is__________?

5.Most primitive of all living Echinoderms belongs to class __________?

6.Class Crinoids contains the_________?

7.The mouth and anus of sea lilies open onto the___________ surface?

8.________have been called the earth worms of the sea?

9.Water vascular system of sea cucumbers is filled with__________?

10.Ophiuroids are__________?

11.The Aboral stomach sometimes called__________ stomach?

12.Echinoderms are pentaradially__________?

13.Ossicles are held in place by connective tissues and covered by__________ layer?

14.Echinoderms have water vascular system used for__________?

15.Echinoderm skeleton consists of series of calcium carbonate called__________?

16.Stomach of sea stars consists of _________regions?

17.In sea stars gases, nutrients and metabolic wastes is tansportesd in coeclom by_________?

18.Ophiuroids are________?

19.A pair of tubes in the body cavity of sea cucumbers is called__________?

20.Crinoids use their water vasculer system for__________?

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