Phylum Arthropoda - Questions & Answers | Exam2Win

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291. Jointed arms occur in

A. Echinus

B. Cucumaria

C. Ophiothrix

D. Echinoarachinus

Explanation:

292. Star Fish is able to crawl over substratum by means of

A. Arms

B. Spines

C. Pedicellariae

D. Tube feet

Explanation:

293. Both mouth and anus occur on the same side in

A. Crinoidea

B. Asteroidea

C. Holothuroidea

D. Echinoidea

Explanation:

294. Sea Star is

A. Asterias

B. Ophiothrix

C. Antedon

D. Echinus

Explanation:

295. Coelomic fluid of echinoderms possess cells

A. Coelomocytes

B. Amoebocytes

C. Phagocytes

D. Scleroblasts

Explanation: